Chemistry, 04.02.2020 09:03 KevinReed6444

100 brainliest if

1.choose one from the following list of common regions on the periodic table of elements:

alkali metals

alkaline earth metals

metalloids

transition metals

halogens

noble gases

2.list the symbol and name for each element in your selected region.

3.explain in a few sentences why these elements are grouped together.

4.choose one element from your region. what makes it unique from all the others?

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Answer from: Shihhschool20

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➷ 1) Alkali metals (group 1 on the periodic table)

2) Lithium - Li

Sodium - Na

Potassium - K

Rubidium - Rb

Cesium - Cs

Francium - Fr

3) These elements are grouped together as they react similarly and they all have 1 electron in their outer shell. They bond with other atoms to form 1+ ions. They all have low melting points and low densities.

4) Francium. It has a much lower melting point than the other elements (only 27 degrees) but is very reactive. When it reacts with other things, it creates a violent reaction.

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Answer from: miaaa0

1.Choose one from the following list of common regions on the Periodic Table of Elements:

I pick Noble Gases

2.List the symbol and name for each element in your selected region.

He for Helium, Ne for Neon, Ar for Argon, Kr for Krypton, Xe for Xenon and Rn for Radon.

3.Explain in a few sentences why these elements are grouped together.

They all have completely filled outermost electron shells. Because of that, they are very stable and not very reactive. That is why they are called Nobles Gases as they usually do not form compounds with other elements.

4.Choose one element from your region. What makes it unique from all the others?

Radon, Rn, is the heaviest noble gas. It is also the largest in size and the only one that is radioactive.

Answer from: Quest

Because a model would make the investigation easier to understand

Answer from: Quest

You would be correct, boiling water does disinfect contamination. the property of disinfecting means to kill germs, bacteria and other pathogens or contamination that might cause an infection or cause a person to become sickly. a couple methods of disinfecting are using soap, other cleaning supplies or by simply "boiling" the contaminate. the reason why boiling water disinfects certain attributes is because some cells cannot survive the heat and pressure.

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100 brainliest if

1.choose one from the following list of common regions on the periodi...