Mid-Term Exam Review. Bondx, Reactions and Matter

Front

What is the atomic number?

Back

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

Front

What is the skeleton equation for phosphorus combining with oxygen?

Back

P + O2 -> P2O5

Front

How many valence electrons does Carbon have?

Back

Carbon has 4 valence electrons.

Front

How do you calculate the number of neutrons in an atom?

Back

Subtract the number of protons (p+) from the mass number.

Front

What does the number of protons represent in an element?

Back

The number of protons represents the atomic number.

Front

What is a proton?

Back

A proton is a positively charged particle found in the nucleus of an atom.

Front

What is a neutron?

Back

A neutron is a neutral particle found in the nucleus of an atom.

Front

What is an electron?

Back

An electron is a negatively charged particle that orbits the nucleus of an atom.

Front

What is the mass number of an atom?

Back

The mass number is the total number of protons and neutrons in the nucleus.

Front

What is a chemical reaction?

Back

A chemical reaction is a process where substances (reactants) are transformed into different substances (products).