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WorksheetsSubatomic particles
Total questions: 17
Worksheet time: 9mins
Name
Class
Date
1.
A proton has a positive charge and a mass of ____ amu.
a)
0
b)
1
c)
.5
d)
2
2.
A neutron has a negative charge and a mass of ____ amu.
a)
0
b)
1
c)
2
d)
.5
3.
An electron has a negative charge and a mass of ___ amu.
a)
0
b)
1
c)
.5
d)
2
4.
The atomic mass on the periodic table is an average of all the ____ of an element based on abundance.
a)
protons
b)
isotopes
c)
ions
d)
charges
5.
The number of protons in an element can be found by:
a)
looking up the group the element is in.
b)
subtracting the atomic mass from atomic number
c)
looking up the atomic mass
d)
looking up the atomic number
6.
How do you decide which isotope is the most common by looking at the periodic table?
a)
Round the atomic mass to the nearest whole number.
b)
Round the atomic number to the nearest whole number
c)
An equation is required.
d)
The periodic table does not provide this information.
7.
Which particles are in the nucleus?
a)
Protons
b)
Neutrons
c)
protons and electrons
d)
protons and neutrons
8.
How do you calculate the charge of an atom?
a)
protons - electrons = charge
b)
protons - neutrons = charge
c)
its equal to the number of electrons = charge
d)
protons = charge
9.
How do you determine the number of valence electrons the main group elements have when neutral?
a)
Corresponds to the period
b)
Corresponds to the group
c)
Corresponds to the block
10.
Cations (like Ca2+)gain a positive charge by ____ electrons accoring to the octet rule.
a)
gaining
b)
losing
11.
Anions (like Cl-) gain a negative charge by ____ electrons according to the octet rule.
a)
gaining
b)
losing
12.
What charge would a sulfur atom have if it became an anion?
a)
S2-
b)
Na2-
c)
S2+
d)
Na2+
13.
The valence electrons are the outermost electrons which determine an elements ________.
a)
mass
b)
kinetic energy
c)
reactivity
d)
half-life
14.
What is always different about 2 isotopes of the same element?
a)
Their number of protons
b)
Their number of electrons
c)
Their number of Neutrons
d)
Their reactivity
15.
Octet comes from the prefix oct, meaning a set of _____ valence electrons.
a)
10
b)
6
c)
8
d)
7
16.
When drawing a bohr diagram, the first orbital can hold __ electrons, while the subsequent orbitals can hold __.
a)
1, 2
b)
2, 4
c)
2, 8
d)
4, 8
17.
What would the ionic charge of a magnesium ion be?
a)
Mg2+
b)
Mg+
c)
Mg2-
d)
Mg-
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