Toggle Navigation
Games
Blog
News
Class PIN
Join for Free
Sign in
Toggle Navigation
Games
PIN
Join for Free
Blog
Pricing
News
Contact us
Help center
Sign in
Study
Isotopes Review
0
%
0
0
0
Back
Restart
How many protons does Calcium have?
20
Oops!
Okay!
What do these isotopes of carbon all have in common?
atomic number and neutrons
protons, atomic number, and mass number
neutrons and mass number
atomic number and electrons
Oops!
Okay!
How many electrons are in an atom with an atomic number of 50?
50
Oops!
Okay!
How many neutrons in C-14?
8
Oops!
Okay!
How many neutrons in C-14?
8
Oops!
Okay!
A charge of +2 means you have
more electrons than neutrons
more electrons than protons
more protons than electrons
more protons than neutrons
Oops!
Okay!
If you want to determine the total number of protons and neutrons in an atom, you can refer to the...
atomic weight
ion number
atomic number
mass number
Oops!
Okay!
If Beryllium is electrically neutral, how many electrons does it have?
4
Oops!
Okay!
Which atom has 4 neutrons?
Li-8
they have the same # of neutrons
Li-6
Li-7
Oops!
Okay!
Isotopes differ in the number of
neutrons
electrons
protons
Oops!
Okay!
For an atom to have an overall negative charge
electrons were lost
electrons were gained
Oops!
Okay!
The atomic mass of an element is the weighted average of the masses of all its ______ that occur naturally
neutrons
electrons
isotopes
protons
Oops!
Okay!
How many neutrons does an atom of the isotope Neon-22 have?
12
Oops!
Okay!
What is the mass number defined as?
the number of neutrons
the number of protons and neutrons
the number of protons
the number of protons and electrons
Oops!
Okay!
How many neutrons does the isotope of lithium-8 have?
5
Oops!
Okay!
If Aluminum has a charge of +3, how many electrons are present?
10
Oops!
Okay!
If Arsenic has a charge of -3, then how many electrons does it have?
36
Oops!
Okay!
How do you calculate mass number?
protons + neutrons
Oops!
Okay!
The atomic number represents the number of...
protons
ions
electrons
neutrons
Oops!
Okay!
In uranium - 235 what does 235 represent?
mass number
Oops!
Okay!
What subatomic particle can NEVER change?
protons
Oops!
Okay!
Your experience on this site will be improved by allowing cookies.
Allow cookies