IONIC BONDS

Question 1

ion

Answer 1

an atom with an electric charge. To have an electric charge it has to lose or gain an electron.

Question 2

When atom LOSES an electron, does it have a positive or negative charge?Why?

Answer 2

when it loses an electron the atom has more protons so it has a Positive electric charge.

Question 3

When atom GAINS an electron, does it have a positive or negative charge?Why?

Answer 3

When it gains an electron the atom has more electrons, so it has a Negative charge.

Question 4

Ionic bond

Answer 4

the attraction between a positive ion and a negative ion. Usually form when metals and nonmetals combine.

Question 5

ionic compound

Answer 5

a compound made up of positive and negative ions.

Question 6

polyatomic ions

Answer 6

poly (a lot)…….Ions that have more than one atom.

Question 7

chemical formla

Answer 7

a group of symbols that show how much of each element is in a compound.
example: the formula of magnisium chloride is:
MgCI2…..there are 2 chloride ions for every 1 Magnesium.

Question 8

subscript

Answer 8

tells you the ratio of elements in the compound.

example:MgCI2, the ratio is 1 (Mg) to 2 (CI) 1 to 2

Question 9

What does the electric charge equal to when ionic compounds are formed?

Answer 9

zero

Question 10

When you name an ionic compound, which ion comes first, the positive or negative?

Answer 10

1st you write the POSITIVE ion then the Negative.

example;Magnesium Chloride

Question 11

Properties of Ionic Compounds are?

Answer 11

1. they are hard brittle crystals
2. they have high melting points.
3. When dissolved in water or melted, they conduct(make) electricity.

Question 12

crystal

Answer 12

the positive and negative ions form an orderly pattern called crystal