FALL FINAL REVIEW

Front

What is ionization energy?

Back

The energy needed to remove the outermost electron from an atom.

Front

What is the name of group number 1 in the periodic table?

Back

Alkali metals.

Front

What happens when an electron transitions from n = 5 to n = 2 in a hydrogen atom?

Back

Energy is released, and visible light is emitted.

Front

How many significant figures are in the number 100000000?

Back

1 significant figure.

Front

What does an orbital represent in atomic theory?

Back

The probability of the electron location.

Front

Define electronegativity.

Back

The ability of an atom to attract electrons from another atom.

Front

What is the principle behind the octet rule?

Back

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

Front

What is the difference between ionic and covalent bonds?

Back

Ionic bonds involve the transfer of electrons, while covalent bonds involve the sharing of electrons.

Front

What is a mole in chemistry?

Back

A mole is a unit that measures the amount of substance, equivalent to 6.022 x 10^23 particles.

Front

What is the significance of the atomic number?

Back

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