Atomic structure

Question 1

What is an atom

Answer 1

The smallest part of an element that can exist on its own

Question 2

What is an element

Answer 2

A substance that only contains one type of atom

Question 3

What are atoms made of

Answer 3

Electrons and a nucleus containing protons and neutrons

Question 4

What is the mass number

Answer 4

The sum of the number of protons and neutrons in an atom

Question 5

What is the atomic number

Answer 5

The number of protons contained in the atom’s nucleus

Question 6

What is the maximum electrons in the first shell

Answer 6

2

Question 7

What is the maximum electrons in the 2nd shell

Answer 7

8

Question 8

What is the maximum electrons in the 3rd shell

Answer 8

8

Question 9

What is the vertical column of the periodic table called

Answer 9

Groups

Question 10

x% yAG
z% wAG

Answer 10

( (x)x(y) )+ (z x w )
————————
100

Question 11

Relative charge of a proton

Answer 11

+1

Question 12

Relative charge of a neutron

Answer 12

0

Question 13

Relative charge of electron

Answer 13

-1

Question 14

What is the mass number

Answer 14

The sum of protons and neutrons

Question 15

What is an atomic number

Answer 15

The number of protons (equal to the number of electrons)

Question 16

Top number of an element

Answer 16

mass number

Question 17

What is an isotope

Answer 17

An Element with a different number of protons to neutrons

Question 18

Arrangement of electrons in first 20 elements

Answer 18

1, 2, 2/(1-8), 2/(1-8)/(1-8), 2/(1-8)/(1-8)/ (1-2)