Molecular and ionic compounds

Question 1

What are the ionic compounds?

Answer 1

CaS and K3N

Question 2

How do Yk they are ionic compounds?

Answer 2

1 metal and 1 non- metal

Question 3

How would the atomic structure of cesium be different from that of rubidium?

Answer 3

Rubidium has one less shell.

Question 4

Draw an ion with 2-

Answer 4

O (2,6) to O(2,8 with 2-)

Question 5

What atom has the same structure?

Answer 5

Neon N(2,8)

Question 6

Sketch argon

Answer 6

Ar ( 2, 8, 8)

Question 7

1 metal and 1non-metal

Answer 7

Cl 1- and K 1+

Question 8

Draw methane

Answer 8

CH4

4x H (2 bonds)
C (8 bonds around)

Question 9

What kind of bond is it?

Answer 9

Covalent bonds

Question 10

Single covalent bond?

Answer 10

H2

Question 11

Stick diagram

Answer 11

H-H

Question 12

What is an easy way to remember diatomic molecules?

Answer 12

H O F Br I N Cl

Question 13

Difference between ion and atom of elements?

Answer 13

Ions have a positive or negative charge, while atoms don’t

Question 14

Why do atoms stay close together in a molecular compound?

Answer 14

They stay together because of covalent bonds, meaning they share electrons through valence shells.

Question 15

Draw an alkali metal and a halogen

Answer 15

Na (2,8,1) F (2,7)

To

Na (2,8) F(2,8)

Na 1+ and F1-

Question 16

Give the chemical formula

Answer 16

NaF

Question 17

What does each spring represent?

Answer 17

1 spring= 1 covalent bonding