Elements and Properties

Question 1

Define the term element

Answer 1

A pure substance made of only one type of atom

Question 2

Define the term molecule

Answer 2

Two or more atoms connected by chemical bonds

Question 3

Describe the structure of a lattice

Answer 3

A three dimensional arrangements of ions or atoms

Question 4

Recall formula for the following molecular elements:
Oxygen
Hydrogen H2
Chlorine Cl2

Answer 4

Oxygen:
O2

Hydrogen:
H2

Chlorine
Cl2

Question 5

Recognise that atoms of elements can be found in different structures including as single atoms, molecules and lattices

Answer 5

show photos

Question 6

Draw models of elements

Answer 6

insert photo

Question 7

Describe substance properties including ductility, malleability, lustre, electrical conductivity, state at room temperature

Answer 7

Metals: Malleable, conductor of electricity, solid at room temperature

Non-metals: Ductile, brittle, melt at low temperature, bad conductor of electicity

Question 8

Recall that mercury (Hg) is a liquid metal at room temperature

Answer 8

insert smt

Question 9

Identify the noble gases as the Group 18 elements

Answer 9

periodic table insert

Question 10

Recognise the common properties of noble gases as gases at room temperature, unreactive and existing as singular atom elements

Answer 10

Noble gasses are stable, full electron shells, don’t react with anything

Question 11

Define Metalloid

Answer 11

a thing with properties of a metal and a non-metal