Isotopes

Front

In an atom, there are three types of subatomic particles. ______ are positively charged, ______ are negatively charged, and ______ are neutral.

Back

Protons, Electrons, Neutrons

Front

The atomic number tells the number of ______ in an atom, which never changes.

Back

Protons

Front

_______ is the average mass of all the isotopes of an element.

Back

Atomic Mass

Front

An atom of an element with a different number of neutrons and therefore a different atomic mass

Back

Isotope

Front

Isotopes are atoms of the same element with different ____________.

Back

Number of Neutrons & Mass Number

Front

What is the ATOMIC MASS of the isotope Carbon-14?

Back

14

Front

Carbon-14 has ____ protons, ____ electrons, and _____ neutrons.

Back

6, 6, 8

Front

Isotopes of the same element have the same number of ________ but a different number of _______.

Back

protons, neutrons

Front

An atom of phosphorus has an atomic number of 15 and a mass number of 31. How many neutrons does it contain?

Back

16

Front

The identity of a chemical element is always determined by which of the following? the number of protons it has, the number of neutrons it has, the number of electrons it has

Back

the number of protons it has