Chemistry Semester 1 Review

Front

What does the octet rule state?

Back

The octet rule states that atoms tend to share, lose, or gain electrons to achieve a full outer shell of eight electrons, which is considered a stable configuration.

Front

What element has 77 protons?

Back

Iridium.

Front

What is the molecular shape of NCl3?

Back

Pyramidal.

Front

Which element has a full outer energy level with 8 valence electrons?

Back

Xenon (Xe).

Front

What is the molecular shape of SiH4?

Back

Tetrahedral.

Front

Define covalent bonding.

Back

Covalent bonding is a type of chemical bond where two atoms share one or more pairs of electrons.

Front

What is the significance of valence electrons?

Back

Valence electrons determine how an atom can bond with other atoms and are crucial for understanding chemical reactivity.

Front

What is the periodic table?

Back

The periodic table is a tabular arrangement of chemical elements, organized by increasing atomic number, electron configuration, and recurring chemical properties.

Front

What is the difference between ionic and covalent bonds?

Back

Ionic bonds involve the transfer of electrons from one atom to another, resulting in charged ions, while covalent bonds involve the sharing of electrons between atoms.

Front

What is a molecule?

Back

A molecule is a group of two or more atoms bonded together, representing the smallest fundamental unit of a chemical compound.