midterm review 3

Front

What is the formula to calculate the number of moles?

Back

Mass (g) / Molar Mass (g/mol)

Front

What is the term for atoms of the same element with different mass numbers?

Back

Isotopes

Front

How many valence electrons does chlorine have before gaining an electron?

Back

7

Front

How many electrons can a P-Orbital hold?

Back

6

Front

What does electronegativity measure?

Back

The "pull" on bonding electrons

Front

What is the definition of a mole in chemistry?

Back

A mole is a quantity that contains 6.022 x 10^23 particles (atoms, molecules, etc.).

Front

What is the difference between an ion and an isotope?

Back

An ion is an atom with a net electric charge due to the loss or gain of one or more electrons, while an isotope is an atom of the same element with a different number of neutrons.

Front

What is the maximum number of electrons in the first energy level?

Back

2

Front

What is the octet rule?

Back

Atoms tend to gain, lose, or share electrons to achieve a full outer shell of 8 electrons.

Front

What is the significance of the atomic number?

Back

The atomic number represents the number of protons in an atom and determines the element's identity.