Valence Electrons and Ionic Charges

If an atom has 3 valence electrons, what charge will it have as an ion?

• +3
• -3
• +5
• -5

Tags

NGSS.HS-PS1-1

If an element gains 2 electrons, what charge will it have when it becomes an ion?

• +2
• -2
• -6
• -6

If an element loses 3 electrons, what charge will it have when it becomes an ion?

• +3

• -3

• -6

• +6

What is the charge of a Nitrogen (N) ion?

• 1-
• 2-
• 3-
• 3+

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What is the charge of a Chlorine (Cl) ion?

• 1+
• 1-
• 2+
• 2-

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What is the charge of a Sodium (Na) ion?

• 1+
• 2+
• 3+
• 1-

What is the charge of a Calcium (Ca) ion?

• 1+
• 2+
• 1-
• 2-

Anions are __________ ions that form from _______ that __________ electrons.

• positive, nonmetals, lose

• negative, nonmetals, gain

• positive, metals, gain

• negative, metals, lose

Which is most likely to form a negative ion?

• an element from group 17
• a metal
• an element from group 1
• an element with atoms that have eight valence electrons

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What charge will an Oxygen ion have? 

• +1
• -1
• +2
• -2

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2