How many neutrons does an atom of the isotope Neon-22 have?
12
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
How many protons does Calcium have?
20
How many neutrons does the isotope of lithium-8 have?
5
The atomic mass of an element is the weighted average of the masses of all its ______ that occur naturally
electrons
neutrons
isotopes
protons
If Arsenic has a charge of -3, then how many electrons does it have?
36
In uranium - 235 what does 235 represent?
mass number
How many neutrons in C-14?
8
The atomic number represents the number of...
ions
neutrons
protons
electrons
For an atom to have an overall negative charge
electrons were gained
electrons were lost
How do you calculate mass number?
protons + neutrons