PLEASE HELP BRAINLIEST 4 BEST ANSWER
Use the site above and pick any 5 elements and write a research report for 5 different elements. ( 3 sentence minimum per element)

Include the Name, Symbol, Atomic Number, Atomic Mass, and Common Human uses of element, if its present in a common molecule and if its dangerous to humans.

Answer:

Helium. Symbol for Helium is: He . The atomic number (Z) is: 2. The mass number (A): 4. Common human uses of the element: Because it is very unreactive, helium is used to provide an inert protective atmosphere for making fiber optics and semiconductors, and for arc welding. Helium is also used to detect leaks, such as in car air-conditioning systems, and because it diffuses quickly it is used to inflate car airbags after impact. present in a common molecule: Helium does not bond with the other atoms. if its dangerous: helium can cut off oxygen supply or can cause an embolism if a person inhales too deeply.

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Carbon. Symbol: C. The atomic number (Z): 6. The mass number (A): 12. Common human uses of the carbon: is used in metal smelting. It is particularly important in the iron and steel industries. Graphite is used in pencils, to make brushes in electric motors and in furnace linings. Activated charcoal is used for purification and filtration. The carbon atom has unique properties that allow it to form covalent bonds to as many as four different atoms, making this versatile element ideal to serve as the basic structural component, or “backbone,” of the macromolecules. Individual carbon atoms have an incomplete outermost electron shell. If its dangerous: Elemental carbon is of very low toxicity. Health hazard data presented here is based on exposures to carbon black, not elemental carbon. Chronic inhalation exposure to carbon black may result in temporary or permanent damage to lungs and heart.

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Sodium. The Symbol: Na. Atomic number: 11. Mass number: 23. Common human uses : Sodium is important for many different functions of the human body. For example, it helps cells to transmit nerve signals and regulate water levels in tissues and blood. Sodium is the sixth most common element on Earth, and makes up 2.6% of the Earth's crust. The most common compound is sodium chloride. The most common compound of sodium is sodium chloride (common salt). If its dangerous: Sodium is essential to human health, but too much sodium is poisonous. Sodium poisoning can cause seizures, coma, and death.

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Nitrogen. Symbol: N. Atomic number :7. Mass number: 14. Common human uses :Human activities, such as making fertilizers and burning fossil fuels, have significantly altered the amount of fixed nitrogen in the Earth's ecosystems. If its present in a common molecule: Common compounds with nitrogen atoms include ammonia (NH3), nitrous oxide (N2O), nitrites, and nitrates. Nitrogen is also found in organic compounds such as amines, amides, and nitro groups. If its dangerous: High concentrations of nitrogen gas can be particularly harmful to human health. Nitrogen can displace oxygen from ambient air within an enclosed space leading to a dangerous build-up of the inert gas.

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Potassium. Symbol: K. Atomic number: 19. Mass number:39.  Common human uses: Potassium is a mineral that plays many important roles in the body. Food sources of potassium include fruits (especially dried fruits), cereals, beans, milk, and vegetables. Potassium is most commonly used for treating and preventing low potassium levels, treating high blood pressure, and preventing stroke.  If its present in a common molecule: Potassium forms many important compounds. Potassium chloride (KCl) is the most common potassium compound. It is used in fertilizers, as a salt substitute and to produce other chemicals. Potassium hydroxide (KOH) is used to make soaps, detergents and drain cleaners. If its dangerous: Having too much potassium in your blood can be dangerous. Potassium affects the way your heart's muscles work. When you have too much potassium, your heart may beat irregularly, which in the worst cases, can cause heart attack.

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Answer:

The correct answer's B, give brainly if this helped :)

Explanation:

The periodic table is organized left to right by __________.

Metals, nonmetals, metalloids

Metals, metalloids, nonmetals

Metalloids, nonmetals, metals

Nonmetals, metalloids, metals

Im not doing the math-

Bases on the map, which area probably produced the most violent storm systems?

Help me please I really need help and answer only if u know the answer

An ionic bond is a bond between...

what is an example of conduction?

A: how energy travels from a campfire to your body.
B: how the first few centimeters of the troposphere get heated.
C: how most of the energy from the sun travels to Earths surface.
D: how energy moves along with the rising of carbon dioxide particles in the air.

help mehhh i will give out BRAINLEIST

Can you match them to the right one and right answer will get brainliest if you dont know pls dont answer thxs

B in total
pot
5. Lindsey built a clock with 16 divisions, which we'll call Lindsey Hours.
Just like our clocks, the hour-hand on Lindsey's clock goes around twice
per day. How many Lindsey Hours are in one day?
16
-12

If you opened a small bottle of ink at the bottom of a swimming pool, what do you think would happen?​

How does Energy from the Sun reach Earth? Explain in a 5 sentence paragraph or more.
Thx if you help :)

How many Earth's could fit inside the Sun? plz help

Objects in the universe vary in their composition. Which of the following best describes the composition of a galaxy?

A. A solar system containing more than one star larger than our sun

B. A collection of asteroids, dust, and gases orbiting each other in space

C. An unidentified object in space that can be seen using a powerful telescope

D. A collection of billions of stars and their satellites held together by gravity

The table below shows the role of different substances during photosynthesis.


Substance Role During Photosynthesis
Glucose Stores chemical energy
Water Combines with glucose to form carbon dioxide
Chlorophyll Traps sunlight


Which of the following statements would correct one of the roles listed in the table?
A.) Glucose combines with carbon to form water.
B.) Chlorophyll reacts with light to produce carbon dioxide.
C.) Water combines with carbon dioxide during photosynthesis.
D.) Chlorophyll stores chemical energy needed for photosynthesis.

plz help

Which best describes two counteracting forces on an object?


using a dolly to push a box to another location

two children pulling apart a wishbone

a group of dogs pulling a dogsled across ice

two people pushing a broken-down car up the road

What can magnetic attraction and filtration both be used to do?

Separate compounds into their components.

Put components together to make a mixture.

Put components together to make a compound.

Separate mixtures into their components.

Please help me I will give you the brain thing with extra points if you help me, please. I need to get this right. 10/10

HELP ITS SCIENCE PLS

identify the location of each element group on the periodic table. ​

why does Australian get more uv light than othet parts of the world?​

The force of _______ causes a falling object to accelerate at 9.8 m/s/s. Question 3 options: tension gravity mass velocity

PLEASE HELP BRAINLIEST 4 BEST ANSWER
Use the site above and pick any 5 elements and write a research report for 5 different elements. ( 3 sentence minimum per element)

Include the Name, Symbol, Atomic Number, Atomic Mass, and Common Human uses of element, if its present in a common molecule and if its dangerous to humans.

When a chemical reaction occurs, what happens to the atoms of the two substances? When a chemical reaction does not occur, what happens to the atoms of the two
Substances?

How can a charged balloon attract a wall without any contact?

The positive charges of the uncharged wall move to the outside.
The wall changes shape and the positive charges move to the inside.
The negatively charged balloon repels and moves away from the wall.
A positive charge in the balloon attracts the negative charges in the wall.

True or false. Nonmagnetic Rare Earth Metal Samarium can be used to repel sharks.

Suppose you are shooting a basketball toward a hoop. As the ball rises in the air, its ---------------- energy increases and its ---------------------------- decreases.

An ionic bond involves the

HURRY NOW Scince 20 points

The graph below shows the motion of a car.





What is the average speed of the car between 0 and 8 seconds to the nearest hundredth in m/s?

Our skies are blue because of what kind of light? (for my science class pls help- :<)