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WorksheetsChemist chapter 2
Total questions: 10
Worksheet time: 5mins
The nucleus of an atom consist of:
electrons
protons and electrons
protons and neutrons
neutrons and electrons
Which of the following is NOT an example of matter?
water
air
cake
sunlight
Which of the following best describes the octet rule?
Atoms are most stable with 8 electrons in its valence shell
Atoms are most stable with 8 orbitals
Atoms are most stable with 8 protons
Atoms are most stable with 8 electrons in its innermost shell
Chlorine has an atomic number of 17 and has 18 neutrons. What is it mass number?
35
18
17
1
In any given atom, there is an equal number of protons and neutrons.
True
False
The electron is the basic unit of matter.
True
False
Which of the following defines matter?
Anything that has mass and takes up space.
Anything that has density.
Mass over volume.
It doesn't matter.
