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WorksheetsHow Atoms Differ
Total questions: 35
Worksheet time: 19mins
What is the charge of a proton?
positive
negative
neutral
What is the charge of an electron?
positive
negative
neutral
What is the charge of a neutron?
positive
negative
neutral
What part of an atom determines the element that it belongs to?
proton
neutron
electron
atomic mass
Mass Number = __________
protons + electrons
neutrons + electrons
protons + neutrons
protons - neutrons
Atoms of the same element can have different mass numbers?
true
false
If an atom has a positive or negative charge we call it a(an) ____.
excited atom
isotope
positive/negative atom
ion
An atom is neutral because the number of protons is equal to the number of _____.
protons
neutrons
electrons
ions
An atom that has 5 protons and 5 electrons gains an electron. What is the charge of this ion?
+2
+1
0
-1
-2
Particles with different numbers of protons are different ______.
ions
isotopes
elements
Particles of a given element with different numbers of neutrons are different _____.
ions
isotopes
elements
animals
Particles of a given element with different numbers of electrons are different _____.
ions
isotopes
elements
animals
Why is the atomic mass on the periodic table a decimal instead of a whole number.
sometimes atoms have a partial neutron
sometimes atoms have a partial proton
atomic mass is an average mass of all isotopes of an element
this accounts for the small mass of the electrons
How are chlorine-35 and chlorine-37 different?
the have different numbers of protons
the have different numbers of neutrons
the have different numbers of electrons
they have different ions
To make this atom a -2 ion what must happen ?
remove 2 electrons
remove 1 electron
add 2 electrons
add 1 electron
To make this atom a +1 ion what must happen ?
remove 2 electrons
remove 1 electron
add 2 electrons
add 1 electron
If an atom has a charge of 0 (neutral) and an atomic number of 8 it should have ____ electrons.
0
8
7
9
If an atom has a charge of -2 and an atomic number of 16 it should have _______ electrons.
14
16
18
20
If an atom has an expected atomic mass of 12, and it has 6 protons and 6 neutrons it is a ____________.
Normal Atom
Isotope
Cation
Anion
To figure out the mass of an atom based on its subatomic particles you would add ______ & ________.
Protons & Electrons
Protons & Neutrons
Neutron & Electrons
To make this atom -1 ion charge what must happen ?
add 1 proton
remove one proton
add 1 electron
remove 1 electron
To make this atom +2 ion charge what must happen ?
add 2 protons
remove one proton
add 1 electron
remove 2 electrons
To make this atom -2 ion charge what must happen ?
add 2 protons
remove one proton
add 2 electrons
remove 2 electrons
What charge will result if an ion gains 3 electrons?
+3
+1
-3
-2
When and where were dropped the first two atomic bombs by US forces?
In 1945 over the Japanese cities of Hiroshima and Tokyo
In 1942 over the Japanese cities of Nagasaki and Tokyo
In 1942 over the Japanese cities of Hiroshima and Nagasaki
In 1945 over the Japanase cities of Hiroshima and Nagasaki
The most dreadful accident involving a Nuclear Power Plant happened in 1986 in...
Kiev
Chernobyl
Uranium has two isotopes but only one of them is radioactive. Which one?
U-235
U-238
The three types of nuclear radiation in order of decreasing penetrating power are
alpha, beta, gamma
alpha, gamma, beta
beta, alpha, gamma
gamma, alpha, beta
