WorksheetsAtomic Structure Quiz
Total questions: 30
Worksheet time: 22mins
What is the atomic number of this atom?
2
4
6
8
What is the mass number of this atom?
1
3
4
7
How many valence electrons?
2
4
6
8
How many valence electrons are in the atom pictured?
4
2
8
0
The number "18" in the periodic table square shows:
atomic mass.
atomic number.
elemental name.
elemental symbol.
The particles which revolve around the nucleus are called
protons
neutrons
atom
electrons
A proton has approximately the same mass as
a neutron.
a beta particle.
an alpha particle.
an electron.
What is the nucleus made of?
protons, electrons and neutrons
protons and electrons
protons and neutrons
electrons and neutrons
How many Hydrogen atoms are in 4H2O?
6
8
2
4
How many Oxygen atoms are in H2O?
1
2
0
4
How many Magnesium atoms are in 10MgCl2?
10
5
20
How many atoms are there TOTAL in H2SO4 ?
6
5
7
3
How many Sodium atoms are in 6NaCl?
1
12
6
How many Nitrogen atoms are in (NH₄)₂CrO₄?
1
2
8
16
What is C2H8O ?
Element
Letters
Numbers
Compound
How many atoms of Hydrogen are in this compound?
1
2
3
4
three hydrogen (H)
one sulfur (S)
four oxygen (O)
