How many neutrons are in an atom of carbon-14?

• 6

• 8

• 10

• 14

Tags

NGSS.MS-PS1-1

How many protons does this isotope of titanium have?

• 22

• 26

• 48

• 70

Tags

NGSS.MS-PS1-1

How many electrons are in an atom that has an atomic number of 34, an atomic mass of 74 and a charge of -2?

• 2

• 34

• 36

• 40

Tags

NGSS.MS-PS1-1

Negative ions are called

• Cations
• Electrons
• Anions
• Neutrons

When an atom loses a valence electron, it becomes a(n) _____________ ion.

• positive
• negative
• neutral
• polyatomic

Positive ions form when atoms _________ valence electrons.

• lose
• gain
• share
• gain or share

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

How many protons are in this element?

• 79
• 196
• 117
• Cannot be determined

Tags

NGSS.MS-PS1-1

When an atom LOSES an electron it is a

• cation
• anion

Ions are: 

• atoms with a positive or negative charge
• atoms with no charge
• atoms with ONLY a positive charge
• atoms with ONLY a negative charge

A negative ion is a 

• cation
• anion