Term 1: The periodic table

Question 1

What are atoms made out of?

Answer 1

Neutrons
Electrons
Protons

Question 2

What does the nucleus of an atom consist?

Answer 2

Protons
Neutrons

Question 3

What is the relative change of protons?

Answer 3

+1

Question 4

What is the relative change of neutrons?

Answer 4

0 (no charge)

Question 5

What is the relative change of electrons?

Answer 5

-1

Question 6

What is the relative mass of protons?

Answer 6

1

Question 7

What is the relative mass of neutrons?

Answer 7

1

Question 8

What is the relative mass of electrons?

Answer 8

0.0005

Question 9

Where are the protons located?

Answer 9

In the nucleus

Question 10

Where are the electrons located?

Answer 10

Energy levels (shells)

Question 11

Where are the neutrons located?

Answer 11

In the nucleus

Question 12

What is an element?

Answer 12

It is made up of the same types of atoms which have the same atomic number.

Question 13

What is an atomic number?

Answer 13

An atomic number of an element is equal to the number of protons and electrons present in the nucleus of its atom.

Question 14

What is the mass number?

Answer 14

The sum of protons and neutrons present in the nucleus of an atom.

Question 15

What are the sub atomic models?

Answer 15

Protons
Neutrons
Electrons

Question 16

What does the group no. = ?

Answer 16

No. of electrons in outer shell

Question 17

What does the period no. = ?

Answer 17

No. of energy levels

Question 18

What is an ion?

Answer 18

It is an atom with a net electric charge due to the loss or gain of one or more electrons.

Question 19

What are ions with a positive charge called?

Answer 19

cations

Question 20

What are ions with a negative charge called?

Answer 20

anions

Question 21

What is valency?

Answer 21

It is the no. of electrons lost/gaim shared by atom