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WorksheetsAtoms: Protons, Neutrons, Electrons by khayrattee yasser
Total questions: 20
Worksheet time: 36mins
What is the basic unit of an element?
nucleus
molecule
cell
atom
Which subatomic particle has a positive charge?
Electron
Proton
Neutron
Photon
Which subatomic particle has no charge?
Electron
Photon
Proton
Neutron
Which subatomic particle is not located in the nucleus of an atom?
electron
proton
isotope
neutron
What is the atomic number of an element?
Number of neutrons
Number of protons
Number of electrons
Number of isotopes
What is the total number of protons and neutrons in an atom called?
Atomic number
Element number
Mass number
Nuclear charge
How many protons are present in the nucleus of a carbon atom?
4
6
10
8
How many neutrons are present in the nucleus of a helium atom?
1
2
3
4
How many electrons can occupy the first shell of an atom?
2
6
8
4
What is the mass of a neutron in atomic mass units (amu)?
3
1
2
0.5
Which subatomic particle determines the identity of an element?
quark
proton
neutron
electron
What is the term used to describe atoms of the same element with different numbers of neutrons?
Compounds
Molecules
Isotopes
Elements
What is the atomic number of an element with 6 protons?
12
18
6
1
How many neutrons are present in an atom of oxygen-16?
12
8
10
6
How many electrons are present in a neutral atom of magnesium?
12
20
8
16
What is the electron configuration of nitrogen?
2.8
2.7
2.5
2.8.7
What is the mass number of an atom with 8 protons and 9 neutrons?
15
18
17
10
check pic to done to reponse
A
B
C
D
aluminium has more electrons than phosphorus
true
false
an atom is said to be (a) as it has net charge zero
hint: start with letter N
