Ionic Bonding 2 - Intro to Chemical formula

These are examples of ionic compounds: magnesium chloride, copper(II) oxide and lithium fluoride.

Ionic compounds are made of ___________.

• two metals

• two non-metals

• a metal and a non-metal

• none of the above

This is because metals tend to ____ electrons while non-metals tend to ____ electrons.

• lose, lose

• lose, gain

• gain, lose

• gain, gain

Group 2 elements tend to form ions with a charge of?

• +2

• 2+

• -2

• 2-

Elements in group 2 form ions with +2 charge as their atoms ____________ .

• lose valence electrons

• gain valence electrons

• lose 2 valence electrons

• gain 2 valence electrons

Element X is in group 2 of the Periodic Table. What is the chemical symbol of its ion?

• X⁺²

• X²⁺

• X^-2

• X^2-

Elements in group 15 tend to form ions with a charge of ___.

• +5

• -5

• +3

• -3

Elements in group 15 form ions with -3 charge as their atoms ____________ .

• lose 5 valence electrons

• gain 5 valence electrons

• lose 3 valence electrons

• gain 3 valence electrons

Element Z is in group 17 of the Periodic Table. What is the chemical symbol for its ion?

• Z⁷⁺

• Z^-1

• Z^1-

• Z^-

Ionic compounds are electrically neutral.

• True

• False