C1: Atomic Structure and the Periodic Table

Which has the least mass?

Zinc is a compound

An atom has 3 protons, 4 neutrons and 3 electrons. What is its atomic mass?

Technique that could be used to separate food colourings

hydrogen and oxygen combine to make

Technique to separate liquids that have different boiling points

A compound which is the chemical name for limestone

Potassium oxide is

Oxygen can be combined with hydrogen to form water, oxygen is an element.

Calcium oxide is

Which has the most mass?

An atom is made up of a nucleus that is surrounded by _______

Electrons carry a _______ charge

The nucleus carries the _______ charge

I need to separate a complex mixture of compounds

Which of the following is a noble gas?

Electrons orbit the nucleus in shells, energy is used to move from one orbit to the next

Which particle is not thought to make up the atom?

Which of these substances is not an element?

Who discovered the neutron?

sodium and bromine combine to make

I need to separate gravel from sand

I need to separate sand from water

A compound swallowed to treat excess stomach acid (heart burn)

Carbon and oxygen combine to make

Lithium combines with a Group 7 element in a 1:1 ratio to make a new compound. Which is it?

Which of these models of atomic structure is presently accepted by most scientists?

Technique to separate insoluble substances from soluble substances

Calcium chloride is

I need to separate ethanol from water

A compound can be broken down further

A metal element used to make pipes

Table salt (sodium chloride) is a compound made from two elements

An element that is a green-ish gas added to swimming pools to kill bacteria

Which of the following is a mixture?

Which is smaller, a typical atomic radius of the radius of a nucleus?

Which of the following describes a mixture?

Sodium oxide is

zinc and fluorine combine to make

How are scientific theories developed?

Which of the following compounds contains the element tin?

Technique that could be used to prepare salt crystals from salt solution

Which element is not in Group 1 of the periodic table?

Which part of the atom is positively charged?

If magnesium is burned in oxygen it forms magnesium oxide. Magnesium oxide is an element.