Chemistry

Question 1

The row indicates the..

Answer 1

amount of shells

Question 2

the column indicates..

Answer 2

how many electrons in its outer shell

Question 3

all outer shells…

Answer 3

are filled with electrons

Question 4

Atomic number=

Answer 4

number of protons

Question 5

atomic weight=

Answer 5

number of protons + neutrons

round to the nearest whole number

Question 6

number of electrons on each shell

Answer 6

2
8
8
16

Question 7

Metals have

and

Answer 7

a positive ion

loose electrons

Question 8

non metals have

and

Answer 8

a negative ion

gain electrons

Question 9

negative ion

Answer 9

anion

Question 10

positive ion

Answer 10

cation

Question 11

what groups are cations

Answer 11

1,2,3

Question 12

what groups are anions

Answer 12

5,6,7

Question 13

When the charge of the ion is unknown…

Answer 13

it will always be provided to you

Question 14

Atoms in group 1

Answer 14

loose 1 electron

+1

Question 15

atoms in group 2

Answer 15

loose 2 electrons

+2

Question 16

atoms in group 3

Answer 16

loose 3 electrons

+3

Question 17

atoms in group 5

Answer 17

gain 3 electrons

-3

Question 18

atoms in group 6

Answer 18

gain 2 electrons

-2

Question 19

atoms in group 7

Answer 19

gain 1 electrons

-1

Question 20

why do atoms gain electrons

Answer 20

atoms always want to have full outer shell. this means they will loose or gain electrons to make their valence electrons equal.

Question 21

valence electrons

Answer 21

an atoms outer shell electrons

Question 22

When ions of opposite charge are together..

Answer 22

they will attract each other and form an ionic compound

However, all charges must cancel out

Question 23

how to determine the chemical formula

eg.

Answer 23

the crossover method e.g

H+ + P-3 = H(little 3)P

Question 24

When naming the compound..

Answer 24

the cation keeps its regular name but the anion adopts the ‘-ide’ as a suffix.