PS9 Chemistry Final Prep (Part 1)

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 a neutron?

Back

A neutron is a subatomic particle found in the nucleus of an atom, with no electric charge.

Front

What is the difference between protons and electrons?

Back

Protons are positively charged particles found in the nucleus, while electrons are negatively charged particles that orbit the nucleus.

Front

What is an ionic bond?

Back

An ionic bond is a type of chemical bond formed through the transfer of electrons from one atom to another, resulting in the attraction between oppositely charged ions.

Front

How do you determine the mass number of an atom?

Back

The mass number is calculated by adding the number of protons and neutrons in the nucleus.

Front

What is a covalent bond?

Back

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

Front

What is the significance of balancing chemical equations?

Back

Balancing chemical equations ensures that the law of conservation of mass is upheld, meaning the number of atoms of each element is the same on both sides of the equation.

Front

What is the formula for calculating the number of neutrons in an atom?

Back

Number of Neutrons = Mass Number - Atomic Number.

Front

What is a chemical reaction?

Back

A chemical reaction is a process that leads to the transformation of one set of chemical substances to another.

Front

What is the role of electrons in chemical bonding?

Back

Electrons are involved in forming chemical bonds between atoms, either by being shared (covalent bonds) or transferred (ionic bonds).