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Test Description: #before quiz
Instructions: Answer all questions to get your test result.
1) How do you find number of protons?
A
look at number of neutrons
B
mass number
C
atomic mass
D
atomic number
2) Which subatomic particle is negative?
A
electron
B
neutron
C
quark
D
proton
3) rows of elements are ______________ and columns are ________________
A
periodics, groups
B
periods, groups
C
groups, periods
D
families, groups
4) How many oxygen atoms are in the compound chalk?
A
3
B
1
C
4
D
2
5) The most common element in our atmosphere is nitrogen gas.
A
True
B
False
6) Which is not true about the periodic table?
A
There are 118 elements.
B
There are 18 groups.
C
There are 6 metalloids.
D
There are 17 nonmetals.
7) Which would not be a compound?
A
Co
B
KOH
C
CO
D
OH
8) chemical formula for sodium
A
Sm
B
S
C
Na
D
So
9) What is the mass number of iron?
A
26
B
55.845
C
56
D
30
10) How many neutrons are in an atom of Iodine?
A
74
B
72
C
76
D
53
11) Every element has a different number of _______________ in its nucleus.
A
neutrons
B
electrons
C
protons
12) What is the most reactive metal? What is the name of its family?
A
Francium, alkaline earth metals
B
Francium, alkali metals
C
Fluorine, halogens
13) Matter is anything that has _____________ and takes up _____________.
A
mass, space
B
space, mass
C
weight, protons
D
mass, density
14) When 2 or more elements are chemically combined, we call it a(n)...
A
chemical symbol
B
compound
C
solution
D
mixture
15) Which of the following particles is located in the nucleus of an atom?
A
compound
B
proton
C
electron
D
orbital
16) What is the mass number of Bromine?
A
18
B
80
C
79.904
D
88
*select an answer for all questions
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