Gina summarizes the ideas that led to the current atomic model.
1. Dalton developed the theory that all matter is made of atoms.
2. Thomson discovered that atoms contain electrons.
3. Rutherford discovered that atoms have a nucleus.
4. Schrödinger developed the electron cloud model.
5. Bohr developed the model in which electrons orbit the nucleus.

Which change should Gina apply to correct the summary?
Switch 1 and 5.
Switch 2 and 3.
Switch 4 and 5.
Switch 3 and 1.

Answers

Answer 1

Answer:

C.   Switch 4 and 5

Explanation:

edge2021

Answer 2

The atomic model gives a detailed understanding of the atoms and the sub-atomic particles. The models were given in order by Dalton, Thomson, Rutherford, Bohr, and Schrödinger. Thus, option C is correct.

What is the atomic model?

The atomic model is the representation of the atom of the element along with the sub-atomic particles. The first model was given by Dalton, which stated that matter is composed of atoms.

Later Thomson discovered the presence of the electron present in the sea of the positive charges. In addition, Rutherford gave the presence of the positive nucleus in the middle of the atom.

Bohr's model gave the presence of the electron in the orbit of the atom around the nucleus. At last, the current atomic model was given by Schrödinger and is known as the electron cloud model.

Therefore, option C. Gina should Switch 4 (Schrödinger' model) with model 5 ( Bohr 's model).

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Related Questions

What type of reaction will occur with the following reactants?

CaS + NaCl -->

A) double replacement
B) decomposition
C) synthesis
D) single replacement

Answers

Answer:

A) double replacement

Explanation:

Chemical equation:

NaCl +CaS    →    Na₂S + CaCl₂

Balanced chemical equation:

2NaCl +CaS    →    Na₂S + CaCl₂

The given reaction is double replacement reaction in which cation and anions of each reactant exchange with each other.

Double replacement:

It is the reaction in which two compound exchange their ions and form new compounds.

AB + CD → AD +CB

Other options are incorrect because,

Synthesis reaction:

It is the reaction in which two or more simple substance react to give one or more complex product.

AB → A + B

Single replacement:

It is the reaction in which one elements replace the other element in compound.

AB + C → AC + B

Decomposition reaction:

It is the reaction in which one reactant is break down into two or more product.

AB → A + B

describe 3 different landforms.​

Answers

Answer:

Mountains, hills, plateaus

Explanation:

What is the atomic mass of an atom that contains 21 protons, 21 electrons, and 25 neutrons

Answers

44.95591 atomic mass units

Have a Merry Christmas!

Sodium is going in group 1, period 3. It contains A. One valence electron in its 3rd energy shell B three valence electron in its 1st energy shell C. 11 protons, 11electrons , 11 neutrons D. 11 protons, 11 electrons and 23 neutrons

Answers

Answer:

The correct answer is option A, that is, one valence electron in its third energy shell and option C, that is, 11 electrons and 11 protons.

Explanation:

The outermost electrons and the ones that take part in the process of bonding are termed as valence electrons. The atomic number of sodium is 11, thus, it possesses 11 protons and the atoms are neutral so it suggests that sodium has 11 electrons. By electronic configuration, it can be seen that in sodium, two electrons are present in the first shell, 8 in the second, and only one electron in the third shell, that is, 2.8.1. The electron present in the third shell is the valence electron.

I Really need help With CHEMISTRY !! How do I do this?

1. Find the amount of heat (Q) needed to raise the temperature of 5.00 g of a substance from 20.0 to 30.0 degrees Celsius, if the specific heat of the substance is 2.01J/g℃



2. A metal with a specific heat of 0.780 J/g℃ requires 45.0 J of heat to raise the temperature by two degrees Celsius. What is the mass of the metal?

Answers

Answer:

1: 100.5 J

2: 28.8 g

I  found the answers online ;-;"

Bats have oversized ears, which help the bats use sound waves to detect the motion of their prey. Which example of the characteristics of life is most similar?

Answers

Answer:

option B = A rat hides in its hole when it sees an approaching predator.

Explanation:

In order for any organisms, whether plants or animals to be able to keep being alive they have to develop a/some functions or abilities which is going to aid in their battle battle for survival, this concept is known as the Adaptive features of organisms.

From the question above, it can be seen that the oversized ears in bats is an adaptive features for them to get their food: as it helps them to use sound waves to detect the motion of their prey.

Unlike the bats, the rats adaptive features is to have a good running legs. This will help them to avoid getting eating by predators.

Answer:just saying he is correct

Explanation:

HELPPPPPPPPPPPPPPPPPPPPPPPPPPPP

Answers

The first one. Always, no exceptions

Answer:

the awnser is a

Explanation:

obvious lab safetty

What is the subscript of 3MgC12

Answers

I’m not entirely sure buh i think Mg would be 3 and C would be 12

help!!!!! please

there is no question just fill in the question marks

Answers

2 grams :) djdjdjdjsjwjdkndncp

Answer:

32 grams

Explanation:

Ignore the other answer. Two oxygen atoms have a mass of 32 grams. You can also arrive at this answer by subtracting the given values (i.e. 36 - 4 = 32).

How many atoms are there in 7.6 moles of Iron?

Answers

Answer:

45.77 × 10²³ atoms

Explanation:

Given data:

Number of moles of iron = 7.6 mol

Number of atoms = ?

Solution:

Avogadro number:

The given problem will solve by using Avogadro number.

It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance.  The number 6.022 × 10²³ is called Avogadro number.

1 mole = 6.022 × 10²³ atoms

7.6 mol  ×  6.022 × 10²³ atoms / 1 mol

45.77 × 10²³ atoms

Mass = 40g
Volume = 20mL
∙What is the Density?

Answers

Answer:

2 g/cm3

...........

What is a substance that is dissolved in another substance?
O solvent
O compound
O solution
O solute​

Answers

Answer:

Solute

Explanation:

the substance that dissolves in a solvent to produce a homogeneous mixture.

hurry and answer plz!

What does DNA contain?

C. Instructions for energy transfer

D. Instructions for searching for food

B. Instructions for learned behaviors

A. Instructions for inherited traits

Answers

The answer is most likely A. Instructions for inherited traits.

Answer:

A. Instructions for inherited traits

Explanation:

Your traits (what makes who you are) are from your DNA, and the DNA sends instructions on how your body preforms to use/inherit those traits.

I don’t know a lot about DNA, but this is the best information I can provide.

Hope this helps! :)

help asap, please ! :(

Answers

Answer:

huaD?W

Explanation:

Given the speed of light (3.00×108 m/s) and a wavelength 4.3×10−7 m, what is the frequency?

Answers

6.9767 × 10^14

Explanation:

Given :

speed of light (c) =

[tex]3.00 \times 108m/s[/tex]

wavelength (λ) =

[tex]4.3 \times {10}^{ - 7} \: m[/tex]

Equation :

c = λv

v = c/λ

[tex]v = \frac{3.00 \times {10}^{8} }{4.3 \times {10}^{ - 7} } [/tex]

Simplify

[tex]v = 6.976744186 \times {10}^{14} [/tex]

What is the only nonmetal in group 14?

Answers

Answer:

Carbon is the only nonmetal element in the group

Explanation:

Carbon and silica are the non- metal which are placed in group 14.

What is non metal?

Non-metals were elements on the periodic table's right side. Gases, liquids, and solids above are all examples of non-metals. Non-metals are not as lustrous as metals and have a drab color.

The carbon family belongs to Group 14. Carbon, silicon, germanium, tin, and lead are the five members. In their uppermost energy level, each of these elements possesses four electrons. Only carbon and silicon create nonmetal bonding among the Group 14 elements and form by sharing electrons .

To know more about non metal.

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WILL MARK BRAINLIEST!
Which of the following is not a catalyst?
A. Phosphorus
B. Platinum
C. Enzymes
D. Nickel

Answers

Answer: platinum

Explanation:

i think

Which of the following uses mechanical energy to function?
a computer
a battery
a microwave oven
a windmill

Answers

Answer:

Explanation:fff

In an endothermic reaction, energy is

A. absorbed.
B. released.
C. converted to mass.
D. synthesized.

Answers

Answer:

answer is A kxxhhxhxxhjxjxjxxj

Please help..
Describe how to perform a three step 1:100 serial dilution of 10μlof a bacterial culture.

Answers

Answer:

For a 1:100 dilution, one part of the solution is mixed with 99 parts new solvent. Mixing 100 µL of a stock solution with 900 µL of water makes a 1:10 dilution. The final volume of the diluted sample is 1000 µL (1 mL), and the concentration is 1/10 that of the original solution

Explanation:

i hope that gives you an idea

Tenemos un cuerpo de 40 g cuya densidad es 1,24 g/mL y otro objeto de 70 g con una densidad de 0,96 g/mL. Si introducimos cada uno en un recipiente con agua, ¿en qué caso subirá más el nivel de líquido?

Answers

Answer:

El nivel de líquido subirá más al introducirse el objeto de 70 g.

Explanation:

El nivel de líquido subirá más con el objeto que tenga mayor volumen.

Por lo tanto vamos a calcular el volumen de ambos objetos, usando la definición de densidad:

Densidad = Masa / Volumen

Si despejamos Volumen:

Volumen = Masa / Densidad

Ahora usamos esa ecuación y calculamos los volúmenes:

Objeto 1 ⇒ 40 g ÷ 1,24 g/mL = 32,26 mL  Objeto 2 ⇒ 70 g ÷ 0,96 g/mL = 72,92 mL

Por lo tanto el nivel de líquido subirá más con el segundo objeto.

What is the total number of electrons in an atom of an element with an atomic number of 18 and a mass number
of 402
a. 58
c. 22
b. 18
d. 40

Answers

Answer:

18

Explanation:

How many more valence electrons does this atom need to fulfill the Octet
Rule?

Answers

Answer:

In the valence shell, it should have 8 valence electrons.

Explanation:

Every organism has a unique common name.
Group of answer choices

True

False
Plz answer the test end in 20 min

Answers

Answer true

Explanation:

Every recognized species on earth (at least in theory) is given a two-part scientific name. ... These naming rules mean that every scientific name is unique. For example, if bluegill sunfish are given the scientific name Lepomis macrochirus, no other animal species can be given the same name

The answer is True, good luck !

define state of matter ​

Answers

State of matter refers to the forms in which matter can exist.

There are basically three states: Solid, Liquid, Gaseous.

But nowadays we extend this and add two more states: Plasma, Bose-Einstein Condensate

Potasyum-40 küçük atom numaralı doğal radyoaktif birkaç element izotopundan biridir ve doğada K izotopları içerisindeki bolluk yüzdesi %0,012'dir. 1,65 mg K/mL içeren bir bardak sütü içtiğiniz zaman kaç tane 40K atomu yutmuş olursunuz? (1 Bardak süt 225 mL, K: 39,10 g/mol)

Answers

Answer:

6.707 × 10¹⁷

Explanation:

From the information given:

40 ^ K kütlesi = sütteki K kütlesi × 40 ^ K / 100 kütle yüzdesi

nerede;

sütteki K kütlesi = 1.65 mg of K/mL × 225 mL = 371.25  mg of K

40 ^ K kütlesi = 371.25  × 0.012/100

40 ^ K kütlesi = 0,04455 mg = 4.455 × 10⁻⁵ grams

40 ^ K mol sayısı = 40 ^ K kütlesi / molar kütle

= 4.455 × 10⁻⁵/40

= 1.11375 × 10⁻⁶

Son olarak, 40 ^ K = mol × Avogadro sayısı atomları

= 1.11375 × 10⁻⁶  × 6.022 × 10^23

= 6.707 × 10¹⁷

In a group of rats, some individuals have a normal-sized body and others have a dwarf body. In this group, the gene for the body size trait has two alleles. The allele B is for a normal-sized body, and the alleles is for a dwarf body

Answers

Answer:

n a group of rats, some individuals have a normal-sized body and others have a dwarf body. In this group, the gene for the body size trait has two alleles. The allele for a normal-sized body (B) is dominant over the allele for a dwarf body (b).

Squeaky, a rat from this group, has a dwarf body.

Based on Squeaky's phenotype for the body size trait, which of the following could be Squeaky's genotype for the body size gene?

Explanation: can someone pls help?

what mining biodivirsity​

Answers

Answer:

Explanation:

Mining affects biodiversity at multiple spatial scales (site, landscape, regional and global) through direct (i.e. mineral extraction) and indirect processes (via industries supporting mining operations, and external stakeholders who gain access to biodiversity-rich areas as the result of mining).

WHAT DOES THE MASS OF AN OBJECT MEASURE HURRYYYYYYYYYYYYYYYYYYYYY

Answers

Answer:

object's inertial property

Explanation:

The mass of an object is a measure of the object's inertial property, or the amount of matter it contains. The weight of an object is a measure of the force exerted on the object by gravity, or the force needed to support it. The pull of gravity on the earth gives an object a downward acceleration of about 9.8 m/s2.

Answer:

The mass of the object internal property, or the amount of matter it contains

Explanation:

Hope this helps! Happy Holidays!

Which statement about cellular respiration in plants and animals is true?

Both plants and animals need water to start cellular respiration.

Both plants and animals release energy from glucose in cellular respiration.

Both plants and animals take in carbon dioxide to break down glucose in cellular respiration.

Both plants and animals need chlorophyll to make glucose before using it in cellular respiration.

Answers

Answer:

Both plants and animals release energy from glucose in cellular respiration.

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