benchmark 2 practice

Front

What is the charge of protons, neutrons, and electrons in an atom?

Back

Protons have a positive charge, neutrons have no charge (neutral), and electrons have a negative charge.

Front

What is a diatomic element?

Back

A diatomic element is a molecule composed of two atoms of the same element, such as O₂ (oxygen) or H₂ (hydrogen).

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 determines the size of an atom?

Back

The size of an atom is determined by the number of electron shells and the effective nuclear charge experienced by the outermost electrons.

Front

What is a compound?

Back

A compound is a substance formed when two or more different elements chemically bond together.

Front

What is the difference between an element and a compound?

Back

An element is a pure substance made of only one type of atom, while a compound is made of two or more different types of atoms bonded together.

Front

What is a chemical bond?

Back

A chemical bond is the force that holds atoms together in a molecule, which can be ionic, covalent, or metallic.

Front

What is the significance of valence electrons?

Back

Valence electrons are the outermost electrons of an atom and are important for determining how an atom can bond with other atoms.

Front

What is an ionic bond?

Back

An ionic bond is a type of chemical bond formed through the electrostatic attraction between oppositely charged ions.

Front

What is a covalent bond?

Back

A covalent bond is a type of chemical bond formed when two atoms share one or more pairs of electrons.