vocab quiz

nucleus

• the central region, & it contains most of the atom's mass.

• negatively charged subatomic particles that move around the nucleus forming electron cloud

• the number of protons in an atom, is unique to each element

• the total number of protons plus neutrons

electrons

• this charged particle formed from an atom is called an ion

• negatively charged subatomic particles that move around the nucleus forming electron cloud

• positively charged subatomic particles found in the nucleus

• the number of protons in an atom, is unique to each element

protons

• the total number of protons plus neutrons

• the number of protons in an atom, is unique to each element

• positively charged subatomic particles found in the nucleus

• have no charge & are also found in the nucleus. the largest of the subatomic particles

neutrons

• have no charge & are also found in the nucleus. the largest of the subatomic particles

• the number of protons in an atom, is unique to each element

• the total number of protons plus neutrons

• an element with the same number of protons & different number of neutrons

atomic number

• an element with the same number of protons & different number of neutrons

• the region around the nucleus where electrons might be found

• the total number of protons plus neutrons

• the number of protons in an atom, is unique to each element

mass number

• the electron is divided into energy levels, which are sometimes referred to as energy shells

• the total number of protons plus neutrons

• an element with the same number of protons & different number of neutrons

• the region around the nucleus where electrons might be found

isotopes

• an element with the same number of protons & different number of neutrons

• the region around the nucleus where electrons might be found

• the electron is divided into energy levels, which are sometimes referred to as energy shells

• each row is called a what

electron cloud

• each row is called a what

• the region around the nucleus where electrons might be found

• the electron is divided into energy levels, which are sometimes referred to as energy shells

• each column is called what

energy levels

• each row is called a what

• the electron is divided into______ which are sometimes referred to as energy shells

• each column is called what

• this charged particle formed from an atom is called an

period

• an atom that gains an electron

• each row is called a what

• each column is called what

• this charged particle formed from an atom is called an