What characteristics are shared by all alkali metals and alkaline earth metals?

They form alkaline solutions when mixed with water

Noble gases are sometimes called inert gases. What can you infer about the meaning of the word “inert “ in chemistry ?

It refers to substances that do not react with other substances

Which of the following is a true statement?

Periods in Rows; groups in columns

What is true of all atoms?

They contain at least one proton.

What do the elements in the second row have in common?

The same number of electron shells.

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Answers

1
What are nucleons?
Glutens and leptin
Positrons and electrons
Atoms and molecules
Protons and neutrons
2
What characteristics are shared by all alkali metals and alkaline earth metals?
They do not react with water at all
They conduct electricity very well
They form alkaline solutions when mixed with water
They are strong and shiny
3
Noble gases are sometimes called inert gases. What can you infer about the meaning of the word “inert “ in chemistry ?
It refers to substances that easily lose their electrons
It refers to substances they have astrong electrochemical charges.
It refers to gases
It refers to substances that do not react with other substances
4
Carbon has an atomic number of six what can you conclude about carbon from this fact?
It has six neutrons
It’s in group 6
It’s in. Six
It has six protons
5
To become positively charged, and atom must:
Lose an electron
Lose a proton
Gain a proton
Gain an electron
6
Which of the following is a true statement?
Groups in Rows; periods in columns
Categories in rows; gases in columns
Gases in rows; categories in columns
Periods in Rows; groups in columns
7
What is true of all atoms?
They contain at least one proton.
They contain more than one electron shell
They have a full outer electron shells.
They are electrically charged
8
What do the elements in the second row have in common?
The same number of electron shells.
The same number of protons
The same number of electrons
The same number of neutrons
9
What is one key physical difference between transition metals and poor metals?
Reactivity
Charge
Hardness
atomic mass
10
If you wanted to find a sample of fermium, which has an atomic number of 100, where would you look?
In a science lab
Deep within the Earth
In the Earth’s atmosphere
In outer space

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