Atoms and the Periodic Table

Which of the following are located in the nucleus?

• Protons

• Neutrons

• Electrons

True or false: Atoms make up all matter.

• True

• False

Tags

NGSS.MS-PS1-1

The periodic table that we use today is organized by...

• Atomic Mass

• Alphabetical

• Atomic Number

• Year discovered

The smallest element on the periodic table is...

• Helium

• Lithium

• Gold

• Hydrogen

Which of the following is NOT a metal?

• Sodium

• Aluminum

• Helium

• Tin

If the atomic number of an element is 15 and its atomic mass is 31, the number of protons must be...

• 15

• 16

• 31

• 4

Tags

NGSS.MS-PS1-1

In a neutral atom, the number of which two subatomic particles is equal?

• Protons and neutrons

• Protons and electrons

• Neutrons and electrons

• None of the above

How many electrons fit inside the innermost orbital of an atom?

• 1

• 2

• 6

• 8

How many electrons do the Noble Gases have in their outermost orbital?

• 2

• 4

• 6

• 8

Why are the Alkali Metals so reactive?

• They have 1 outer electron that they want to get rid of.

• They have 7 outer electrons and want one more.

• They are toxic.

• They are angry.