Atomic Structure and Reactivity of Metals

An atom is the smallest particle of

• an element

• a compound

• an ion

• molecule

The structure above represents

• compound

• an ion

• an atom

• a molecule

The atomic structure represent the

• atomic structure of sodium

• atomic structure of beryllium

• atomic structure of nitrogen

• atomic structure of lithium

The sub particle called proton was discovered by

• J. J. Thompson

• Ernest Rutherford

• James Chadwick

• John Dalton

Which of the following man discovered electron?

• 
• 
• 
• 

What is the relative charge on a proton?

• • - 1

• 0

• +1

• 1/2000

What isthe relative mass of a neutron?

• 2

• 1

• 0

• 1/2000

What type of force holds the nucleus and the electrons together?

• electrostatic

• friction

• gravity

• magnetic

When metal react with oxygen they form

• a chloride

• a hydroxide

• an oxide

• a sulphate

Which of the following metals does not react with oxygen?

• Gold

• Zinc

• Sodium

• Magnesium