WorksheetsWeek 5 Review Quiz
Total questions: 37
Worksheet time: 28mins
Which subatomic particles determine the identity of an element?
electrons
protons
neutrons
photons
What is the mass number of this atom?
1
3
4
7
Atoms of the same element which have a different number of neutrons are called _________________.
ions
isotopes
quarks
molecules
How many electrons are in an neutral atom with an atomic number of 50?
5
8
50
2
having an equal balance of positive and negative charges
The atomic mass of an atom is equal to
number of protons plus number of neutrons
number of protons plus number of electrons
number of electrons plus the number of neutrons
What is the atomic number?
35
18
17
52
How many neutrons does calcium have?
20
40
60
0
What is the atomic mass of Neon?
10
20
30
What is the atomic mass of Arsenic?
33
107
75
An atom is electrically neutral because
the numbers of protons and neutrons are equal.
the numbers of protons and electrons are equal.
neutrons balance the protons and electrons.
Two atoms that are different isotopes of the same element have
the same number of protons and same number of neutrons
the same number of protons but a different number of neutrons
a different number of protons but the same number of neutrons
a different number of protons and a different number of neutrons
If an atom has 9 protons and 10 electrons it has a charge of ____.
0
-1
+1
-2
If an atom has 4 protons and 2 electrons it has a charge of ____.
0
-2
+2
+1
If an atom has a charge of 0 (neutral) and an atomic number of 8 it should have ____ electrons.
0
8
7
9
What charge does an atom have when it GAINS electrons?
Positive
Negative
Neutral
The parts of an atom are known as the the __________ __________.
molecules
particles
subatomic particles
pieces
The positively charged protons are located ____________________.
in the compounds
in the neutrons
on the electron shells
inside the nucleus
