ICP - Unit 9 - Atomic Theory Review

Front

What is the charge of an electron?

Back

Negative

Front

How many protons does an atom with 10 electrons have?

Back

10

Front

What is the nucleus of an atom?

Back

The nucleus is the central part of an atom that contains protons and neutrons, and it holds most of the atom's mass.

Front

What are isotopes?

Back

Isotopes are atoms of the same element that have the same number of protons but different numbers of neutrons.

Front

What is the mass number of an atom?

Back

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

Front

What is the difference between protons and neutrons?

Back

Protons are positively charged particles found in the nucleus, while neutrons have no charge and also reside in the nucleus.

Front

What is the electron cloud?

Back

The electron cloud is the region around the nucleus where electrons are likely to be found.

Front

How do you determine the number of neutrons in an isotope?

Back

Subtract the atomic number (number of protons) from the mass number.

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 the role of electrons in an atom?

Back

Electrons are negatively charged particles that orbit the nucleus and are involved in chemical bonding.