Atoms and the Periodic Table

Question 1

What are all substances made of?

Answer 1

Atoms

Question 2

What is an element?

Answer 2

A substance made from only 1 sort of atom

Question 3

Where are elements shown?

Answer 3

In the periodic table

Question 4

What does each group in the periodic table contain?

Answer 4

Elements with similar properties

Question 5

What are atoms of each element represented by?

Answer 5

Symbols

Question 6

What is the nucleus made up of?

Answer 6

Protons and neutrons

Question 7

What’s the relative charge of a neutron?

Answer 7

0

Question 8

What’s the relative charge of a proton?

Answer 8

+1

Question 9

What’s the relative charge of an electron?

Answer 9

-1

Question 10

In an atom, what is the number of electrons equal to?

Answer 10

The number of protons in the nucleus

Question 11

What overall charge do atoms have?

Answer 11

No overall electrical charge

Question 12

What do all atoms of a particular element have the same number of?

Answer 12

Protons

Question 13

What’s the atomic number?

Answer 13

Number of protons in an element

Question 14

What’s the mass number?

Answer 14

Sum of protons and neutrons

Question 15

What do elements in the same group of the periodic table have in common, in terms of electrons?

Answer 15

Same number of electrons in their outer shell- giving them similar properties

Question 16

What are elements in Group 0 known as?

Answer 16

Noble gases

Question 17

Why are Noble Gases unreactive?

Answer 17

As their atoms have stable arrangements of of electrons