Chem Midterm Review

Front

What is a nonreactive gas that does not form compounds?

Back

Argon is a nonreactive gas that does not form compounds.

Front

What is the atomic number and mass number of Chlorine?

Back

Chlorine has an atomic number of 17 and a mass number of 35.

Front

How many protons, electrons, and neutrons does Chlorine have?

Back

Chlorine has 17 protons, 17 electrons, and 18 neutrons.

Front

What is the number of neutrons in Carbon-14?

Back

Carbon-14 contains 8 neutrons.

Front

Which orbital can NEVER exist?

Back

The 2d orbital can never exist.

Front

Who organized the periodic table by atomic number?

Back

Mosely organized the periodic table by atomic number.

Front

Define atomic number.

Back

The atomic number is the number of protons in the nucleus of an atom.

Front

What is a mass number?

Back

The mass number is the total number of protons and neutrons in an atom's nucleus.

Front

What is an isotope?

Back

Isotopes are atoms of the same element that have the same number of protons but different numbers of neutrons.

Tags

NGSS.HS-PS1-8

Front

What is the significance of the periodic table?

Back

The periodic table organizes elements based on their atomic number and properties.