Chemistry Ions and Ionic Bonding

Where are valence electrons found?

• In the nucleus of the atom.

• In the energy level closest to the nucleus.

• In the outermost energy level.

The ___________ number of the representantive elements in the periodic table tells the number of valence electrons

• row

• period

• group

• block

How many valence electrons do the elements in group 3 A have?

• 3

• 4

• 5

• 8

Electron dot structures show

• all protons

• all neutrons

• all electrons

• valence electrons

According to the Lewis dot structure, Argon is in group ___.

• 1A

• 2A

• 8A

• 7A

Why do elements gain, lose, or share valence electrons?

• to become charged

• to gain an octet

• to become a cation

• to become an anion

How will this atom achieve an octet?

• lose 1 valence electron

• gain 1 valence electron

• lose 7 valence electrons

• lose 7 valence electrons

How will this element achieve an octet?

• lose 6 valence electrons

• gain 6 valence electrons

• lose 2 valence electrons

• gain 2 valence electrons

Which statement is not true about a cation?

• They have an overall positive charge.

• They have more protons than electrons.

• They are formed when an element gains electrons.

• Metals form cations.

What ststement is NOT true of anions.

• They have a negative charge.

• They have more electrons than protons.

• Nonmetals form anions

• Anions are formed when an atom loses electrons.