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Total questions: 25
Worksheet time: 14mins
The smallest particles of matter are called
neutrons
atoms
electrons
protons
What does the atomic number represent?
how many atoms are in a group.
how much an atom weighs.
the number of protons in the nucleus of the atom.
particles are packed tightest in a
solid
liquid
gas
plasma
particles move fastest in a
solid
liquid
gas
slime
Which particles are contained in the nucleus of an atom?
neutrons and electrons
protons and neutrons
protons, neutron, and electrons
which subatomic particles have no charge (they are neutral)?
protons
neutrons
electrons
What is a subatomic particle with a positive charge?
Proton
Neutron
Electron
What are kinds of subatomic particles?
Protons neutrons, and electrons
the nucleus
the smallest particles of matter
Which subatomic particles are much smaller than the others and have a negative charge?
protons
neutrons
electrons
What does the atomic number represent?
how many atoms are in a group.
how much an atom weighs.
the number of protons in the nucleus of the atom.
particles are packed tightest in a
solid
liquid
gas
plasma
particles move fastest in a
solid
liquid
gas
slime
An atom has an atomic number of 15 and a mass number of 31. How many protons are there in the atom?
15
31
16
47
