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WorksheetsChemistry CQA1 Review Part 1
Total questions: 20
Worksheet time: 17mins
Name
Class
Date
1.
Which statement is most accurate about protons
a)
They have a positive charge
b)
They occupy the orbitals
c)
They have a negative charge
d)
They are extremely small
2.
How many neutrons does the isotope of lithium have?
a)
8
b)
3
c)
4
d)
5
3.
Which model did J.J Thomson create?
a)
Planetary Model
b)
Plum Pudding Model
c)
Atomic Model
d)
Molecular Model
4.
Which model did Niels Bohr create?
a)
Planetary Model
b)
Plum Pudding Model
c)
Atomic Model
d)
Molecular Model
5.
Neon is which of the following?
a)
Alkali metal
b)
Alkali earth metal
c)
Nobel gas
d)
Halogen
6.
H is the symbol for which of the following?
a)
Helium
b)
Hydronium
c)
Hydrogen
d)
Oxymoron
7.
The alkali metals have how many valence electrons?
a)
1
b)
2
c)
7
d)
8
8.
Elements which are shiny, conduct electricity and heat are called
a)
metal
b)
nonmetal
c)
metalloid
d)
nonexistent
9.
Rows on the period table are called _____ while columns are called _____.
a)
groups, families
b)
groups, periods
c)
periods, groups
d)
families, groups
10.
Which is a Halogen?
a)
Bromine
b)
Cobalt
c)
Iron
d)
Nickel
11.
The period for Bromine is ___________.
a)
3
b)
2
c)
4
12.
Beryllium is in group number______.
a)
Group 2
b)
Group 3
c)
Group 4
d)
Group 7
13.
_______ and _______ are located inside of the nucleus.
a)
Electrons and Protons
b)
Protons and Neutrons
c)
Neutrons and Electrons
14.
The __________ of an atom is the sum of the protons and neutrons in the nucleus of that atom.
a)
mass number
b)
atomic number
c)
atomic weuight
d)
isotope weight
15.
Two atoms of the same element but with different mass numbers are called________
a)
electrons
b)
isotopes
c)
variables
d)
electron cloud
16.
How many electrons are in an atom that has an atomic number of 34, an atomic mass of 74 and a charge of -2?
a)
34
b)
36
c)
2
d)
40
17.
Ernest Rutherford's gold-foil experiment (pictured) showed that __________________
a)
atoms contain electrons
b)
atoms are mostly empty space
c)
atoms can be split
d)
atoms are negatively-charged
18.
Which subatomic particle is found outside of the nucleus?
a)
Electron
b)
Proton
c)
Neutron
d)
atom
19.
An aluminum isotope consists of 13 protons, 13 electrons, and 14 neutrons. Its mass number is
a)
13
b)
14
c)
27
d)
40
20.
The smallest particle into which matter can be divided is called a(n)
a)
element
b)
molecule
c)
mixture
d)
atom
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