Atomic Structure

Sodium has an atomic number of 11, how many protons does this atom have?

• 22
• 11
• 12
• 2

Protons are equal to:

• Atomic Mass
• Number of neutrons
• Atomic Number
• All of the subatomic particles

A proton is a _____ charged particle.

• Negatively
• Positively

The atoms of any given element ____ have the same number of protons.

• sometimes
• always
• never

How many protons are in Neon

• 10

• 20

• 21

• 30

In a neutral atom, the atomic number is equal to...

• neutrons
• electrons
• atomic mass
• electrons or protons

What are valence electrons?

• The total number of electrons in an atom

• The number of electrons in the outermost shell

• The number of electrons in the second shell

• The number of protons in the outermost shell

How many valence electrons does carbon have?

• 4

• 5

• 6

• 7

How many valence electrons are found in atoms of group 1?

• 7
• 6
• 4
• 1

How many valence electrons are found in atoms of group 14?

• 4
• 3
• 14
• 16