metals and non metals

Question 1

define luster

Answer 1

shiny when polished able to reflect light from its surface

Question 2

define malleable

Answer 2

able to be beaten or hammered or pressed in to a sheet

Question 3

define ductile

Answer 3

able to be drawn in to a wire

Question 4

describe the difference between metals and non metals in terms of conductivity

Answer 4

metals are a good conductor of electricity in solid or liquid state

Question 5

describe the difference between metals and non metals in terms of ductility

Answer 5

metals = ductile
non metals = not ductile

Question 6

describe the difference between metals and non metals in terms of
appearance

Answer 6

metals =lustrous
non metals = dull

Question 7

describe the difference between metals and non metals in terms of melting and boiling points

Answer 7

metal= high M&B points
non metals= low M&B points

Question 8

describe the difference between metals and non metals in terms of conductors

Answer 8

metals= good conductor
non metals= poor conductor used as insulator

Question 9

describe the structure of metal atoms

Answer 9

metal atoms are pact together in a lattice structure the valance electrons are able to move freely (metallic bonding )

Question 10

why do metals conduct electricity

Answer 10

because electrons are free to move

Question 11

describe what happens when a metal structure is hit with a hammer or being drawn into a wire

Answer 11

the cations can move past on another to form a new shape or drawn in to a wire but don’t break the metallic bonds because the forces holding the lattice together are non directional

Question 12

a word to describe non metals

Answer 12

brittle

Question 13

metal + acid =?

Answer 13

metal + acid—> salt + Hydrogen

Question 14

metal + oxygen =?

Answer 14

metal + oxygen –> metal oxide

Question 15

metal + water =?

Answer 15

metal + –> metal hydroxide + hydrogen

Question 16

describe the activity series

Answer 16

the activity series aranges metals in order of reactivity. the most reactive at the left

Question 17

define allotrope

Answer 17

different forms of the same element where atoms combine in different ways

Question 18

define alloy

Answer 18

a mixture of two or more elements in a solid, the main component being a metal to produce desirable characteristics

Question 19

define spectator ion

Answer 19

an ion that is present in the reaction but not used in the reaction and dosen’t change

Question 20

define displacement reaction