Review of 2nd Quarter PS 2024 Part 2

Front

What is a negative ion called?

Back

An anion is a negatively charged ion.

Front

What is a chemical bond?

Back

A chemical bond is the force that holds atoms together in a compound.

Front

Who proposed the Nuclear Model by doing the Gold Foil Experiment?

Back

Ernest Rutherford proposed the Nuclear Model.

Front

Which elements are expected to form a covalent bond?

Back

Sulfur (S) and Oxygen (O) are expected to form a covalent bond.

Front

What does a subscript in a chemical formula indicate?

Back

A subscript shows the number of atoms of an element in that compound.

Front

What is a cation?

Back

A cation is a positively charged ion.

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 the octet rule?

Back

The octet rule states that atoms tend to bond in such a way that they have eight electrons in their valence shell.

Front

What is a molecule?

Back

A molecule is a group of two or more atoms bonded together.

Front

What is the role of valence electrons in bonding?

Back

Valence electrons are the electrons in the outermost shell of an atom and are involved in forming bonds.