5.3 Ions

What happens to a sodium atom when it loses an outer electron?

• It becomes a sodium ion

• It becomes a sodium molecule

• It becomes a sodium neutron

• It becomes a sodium proton

What type of ions are cations?

• Negative ions

• Neutral ions

• Positive ions

• Anions

What happens to electrons in cations?

• They gain electrons

• They lose electrons

• They share electrons

• They remain unchanged

Which of the following is a way to remember the charge of an anion?

• Onions are bad (negative)

• Cats are good (positive)

• Dogs are neutral

• Birds are variable

What is the atomic number of Phosphorus?

• 8

• 11

• 15

• 18

What is the electron configuration of Sodium?

• 2,8,1

• 2,6

• 2,8,5

• 2,4,4

Which element loses electrons to form a positive ion?

• Sodium

• Oxygen

• Phosphorus

• Helium

Which element gains electrons to form a negative ion?

• Sodium

• Oxygen

• Phosphorus

• Neon

In an ionic compound, what does the non-metal atom form?

• Cation

• Anion

When sodium chloride forms

• The metal atom gains electrons and the non-metal atom loses electrons.

• The metal atom loses electrons and the non-metal atom gains electrons.

• Both atoms share electrons equally.

• Both atoms gain electrons.