Chemistry

Question 1

metallic bonding

Answer 1

metal and metal ions bonding together to form a lattice of delocalised electrons

Question 2

ionic bonding

Answer 2

non metals and metals are attracted to eachother

Question 3

covalent bonding

Answer 3

non metals pair with another non metal, they share their valence electrons to get a full shell.

Question 4

metallic bonding properties

Answer 4

• high melting/boiling point
• conductors of electricity

Question 5

ionic bonding properties

Answer 5

• high melting/boiling point
• good insulators
• hard and brittle
• soluble in water

Question 6

covalent bonding properties

Answer 6

• low melting/boiling point
• non conductor of heat

Question 7

non metals…

Answer 7

take electrons

Question 8

metals…

Answer 8

give electrons

Question 9

higher melting/boiling point means..

Answer 9

elements have strong bonds between the molecules

Question 10

how many valence shells do non metals have

Answer 10

5-7, they gain electrons in ionic bonding

Question 11

how many valence shells do metals have

Answer 11

1-3, they lose electrons in ionic bonding.

Question 12

elements with 4-8 valence shells…

Answer 12

aren’t included in ionic bonding

Question 13

cation

Answer 13

when an atom loses electrons and becomes positively charged