Icon New game New game
(5)
The number of protons in the nucleus of the atom is equal to the atomic number.
The number of electrons in a neutral atom is equal to the number of protons.
The mass number of the atom is equal to the sum of the number of protons and neutrons in the nucleus.
The number of neutrons is equal to the difference between the mass number of the atom and the atomic number.

Download the paper version to play

Recommended age: 9 years old
90 times made

Created by

United States

Top 10 results

  1. 1
    00:14
    time
    100
    score
  2. 2
    ssv
    ssv
    00:15
    time
    100
    score
  3. 3
    ssv
    ssv
    00:19
    time
    100
    score
  4. 4
    00:24
    time
    100
    score
  5. 5
    Rylan
    Rylan
    01:02
    time
    100
    score
  6. 6
    Brayden
    Brayden
    01:04
    time
    100
    score
  7. 7
    00:38
    time
    7
    score
Do you want to stay in the Top 10 of this game? to identify yourself.
Make your own free game from our game creator
Compete against your friends to see who gets the best score in this game

Top Games

  1. time
    score
  1. time
    score
time
score
time
score
 
game-icon

Fill in the Blanks

AtomsOnline version

The number of protons in the nucleus of the atom is equal to the atomic number. The number of electrons in a neutral atom is equal to the number of protons. The mass number of the atom is equal to the sum of the number of protons and neutrons in the nucleus. The number of neutrons is equal to the difference between the mass number of the atom and the atomic number.

by A Hoog
1

Carbon
Atomic Number : 6
Number of Protons :
Number of Neutrons :
Mass Number : 12

Oxygen
Atomic Number :
Number of Protons : 8
Number of Neutrons : 8
Mass Number :

Hydrogen
Atomic Number : 1
Number of Protons :
Number of Neutrons :
Mass Number : 1

Carbon
Atomic Number :
Number of Protons : 6
Number of Neutrons :
Mass Number : 14

Hydrogen
Atomic Number : 1
Number of Protons :
Number of Neutrons : 2
Mass Number :

Nitrogen
Atomic Number :
Number of Protons :
Number of Neutrons : 7
Mass Number : 14

Hydrogen
Atomic Number :
Number of Protons :
Number of Neutrons : 1
Mass Number : 2

educaplay suscripción