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What are three sub-atomic particles?
Proton, neutron, electron
Which subatomic particle has positive charge?
Proton
Which subatomic particle has negative charge?
Electron
Which subatomic particle has no charge?
Neutron
Inside nucleus, there are protons and .............
neutrons
Which particle moves around nucleus?
Electrons
In an atom, what is the relationship between the number of protons and electrons?
Equal/Same
Elements have the same number of ......................
protons
Nucleus has ...................... charge because it has protons
positive
Electron shell has .................. charge
negative
An atom has 8 protons. How many electrons does it have?
8
An atom has 6 electrons and 8 neutrons. How many protons does it have?
6
X: 11 protons, Y: 12 electrons, Z: 11 electrons. Which 2 atoms are of the same element?
X and Z
Proton number is also called ............. number
atomic
Mass number is the total number of ................... and .....................
protons and neutrons
How many protons are there in this atom?
19
