Front

Two atoms of the same element but with different mass numbers are called________

Back

isotopes

Front

What quantities vary between isotopes of an element?

Back

neutrons and atomic mass

Front

Which particle(s) would you most likely find INSIDE an atom's nucleus?

Back

Both Protons and Neutrons

Front

How many electrons are in an atom that has an atomic number of 34, an atomic mass of 74 and a charge of -2?

Back

36

Front

What is the charge of a Calcium (Ca) ion?

Back

2+

Front

What is an ion?

Back

An ion is an atom or molecule that has a net electrical charge due to the loss or gain of one or more electrons.

Front

What is the difference between cations and anions?

Back

Cations are positively charged ions (lost electrons), while anions are negatively charged ions (gained electrons).

Front

What is atomic mass?

Back

Atomic mass is the weighted average mass of an element's isotopes, measured in atomic mass units (amu).

Front

What is the atomic number of an element?

Back

The atomic number is the number of protons in the nucleus of an atom, which determines the element's identity.

Front

How do you determine the number of neutrons in an atom?

Back

Subtract the atomic number from the atomic mass (rounded to the nearest whole number).