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Question 1

What is an atom?

Answer 1

An atom is the smallest part of an element that can exist.

Question 2

What is an element?

Answer 2

An element is a substance that is made from only one type of atom

Question 3

What is a compound?

Answer 3

A compound contains two or more elements chemically combined in fixed proportions

Question 4

Name the scientific model of the atom order

Answer 4

• Atoms as tiny indivisible spheres
• The plum pudding model, a ball of positive charge with negative electrons embedded in it
• The Nuclear model, scattering experiment with alpha beams being deflected.
• Bohr, Electrons orbit the nucleus at specific distances
• Chadwick, protons make up the positive charge and neutrons which have a mass but no charge are also found in the nucleus.

Question 5

Whats the relative charge of a proton?

Answer 5

+1

Question 6

Whats the relative charge of a neutron?

Answer 6

0

Question 7

Whats the relative charge of a electron?

Answer 7

-1

Question 8

Whats the relative mass of a proton?

Answer 8

1

Question 9

Whats the relative mass of a neutron?

Answer 9

1

Question 10

Whats the relative mass of a electron?

Answer 10

1 over 2000

Question 11

Number of protons is equal to

Answer 11

the number of electrons

Question 12

What can describe an atom?

Answer 12

Atomic number and mass number

Question 13

What is the atomic number?

Answer 13

The number in the bottom left that tells you how many protons there are

Question 14

What is the mass number?

Answer 14

The mass number is in the top left and tells you the total number of protons and neutrons in an atom

Question 15

How do you get the number of neutrons?

Answer 15

Atomic number - mass number

Question 16

What decides what type of atom it is?

Answer 16

Proton number

Question 17

What are isotopes?

Answer 17

Isotopes are the same as elements except it has extra neutrons

Question 18

When atoms join together what does it make?

Answer 18

Compounds