Ions & Molecules

Question 1

Covalent Bonds

Answer 1

2 atoms SHARE pairs of e-

Question 2

Ionic Bonds

Answer 2

e-TRANSFER bt/wn 2 atoms

Question 3

Compound

Answer 3

A group of atoms held together by chemical bonds

Question 4

What are the two different chemical bonds?

Answer 4

Covalent & Ionic Bonds

Question 5

Anions

Answer 5

GAINING an electron

Sign is negative

Question 6

Cations

Answer 6

LOSES an electron

Sign is positive

Question 7

When neutral atoms gain electron(s) to form anions, they are typically named with an ________ suffix.

Answer 7

-ide

Question 8

A pure ionic bind has perfectly ______ sharing of electrons

Answer 8

Unequal

Question 9

A pure covalent bond has a perfectly _____ sharing of electrons

Answer 9

Equal

Question 10

Which chemical bond is associated with ‘molecule’ ?

Answer 10

Covalent compounds

Question 11

Which chemical bond is associated with ‘formula unit’?

Answer 11

Ionic Compounds

Question 12

Elements in groups 15-17 usually have a ________ charge

Answer 12

Negative

Question 13

Polyvalent

Answer 13

Cations of different charges

Question 14

Most of the transition metals (d-block) are _______.

Answer 14

Polyvalent

Question 15

In ionic compounds, the charge for a ____________ is usually included using Roman Numerals.

Answer 15

Transition metal cation

Question 16

When naming a cation within an ionic compound we only include the charge if it is a __________ cation.

Answer 16

Polyvalent

Question 17

Any ionic compound will have a net charge of ___.

Answer 17

Zero

(Cations and anions charge cancel out)

Question 18

Formula for charge for anions in polyvalent cations

Answer 18

Charge of of cation × # of ions in cation
__________________________________________
# of ions in anion