Chemistry Fall Semester Review

Front

What are nonmetals?

Back

Nonmetals are elements that are typically brittle, dull, and poor conductors of heat and electricity. They are found on the right side of the periodic table.

Front

What particles are found in the nucleus of an atom?

Back

The nucleus of an atom contains protons and neutrons.

Front

Where are electrons located in an atom according to Bohr's model?

Back

Electrons are located in circular orbits around the nucleus.

Front

What charge does the nucleus of an atom have?

Back

The nucleus of an atom is positively charged.

Front

What are electrons?

Back

Electrons are subatomic particles that are transferred to form positive and negative ions.

Front

What is the atomic number of an element?

Back

The atomic number is the number of protons in the nucleus of an atom, which determines the element's identity.

Front

What is an ion?

Back

An ion is an atom or molecule that has a net electrical charge due to the loss or gain of one or more electrons.

Front

What is the difference between cations and anions?

Back

Cations are positively charged ions formed by the loss of electrons, while anions are negatively charged ions formed by the gain of electrons.

Front

What is the role of neutrons in an atom?

Back

Neutrons are neutral particles found in the nucleus that contribute to the atomic mass and stability of the atom.

Front

What is the significance of the periodic table?

Back

The periodic table organizes elements based on their atomic number, electron configuration, and recurring chemical properties.