Chemistry Midterm Review 2

Front

An atom with a positive or negative charge due to loss or gain of electrons is known as a...

Back

ion

Front

Which subatomic particle has a neutral charge?

Back

neutron

Front

A anion has a...

Back

negative charge

Front

A phosphorus atom has 15 protons and 16 neutrons. What is the mass number?

Back

31

Front

Which element has an atomic number of 1?

Back

Hydrogen

Front

What is the charge of a proton?

Back

positive charge

Front

What is the charge of an electron?

Back

negative charge

Front

What is the nucleus of an atom?

Back

The central part of an atom that contains protons and neutrons.

Front

What is the difference between an isotope and an ion?

Back

An isotope has the same number of protons but a different number of neutrons; an ion has a different number of electrons.

Front

What is the atomic number of an element?

Back

The number of protons in the nucleus of an atom.