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WorksheetsGCSE Chemistry - Elements, Isotopes & Relative Atomic Mass #2
Total questions: 10
Worksheet time: 5mins
What is the smallest element?
Oxygen
Hydrogen
Helium
Carbon
What does the atomic number represent?
Number of electrons
Number of protons
Number of neutrons
Number of isotopes
What is the nuclear symbol for lithium?
L
Li
Lh
Lt
What are isotopes?
Different forms of the same element with different number of protons
Different forms of the same element with different number of neutrons
Different forms of the same element with different number of electrons
Different forms of the same element with different number of protons and neutrons
What is the mass number of carbon-13?
15
14
13
12
What is the relative atomic mass of copper?
63.6
65.2
61.3
67.8
What is the number of protons in a carbon atom?
6
8
7
5
What is the number of neutrons in a carbon-12 atom?
7
8
6
5
What is the symbol for sodium?
No
Sa
So
Na
What is the number of stable isotopes of copper?
4
1
2
3
