Chem- 20% Summative- Atom, Ion, Isotope

Front

What is the hyphen notation for an element with 8 protons, 9 neutrons, and 10 electrons?

Back

Oxygen- 17

Front

How do carbon-12 and carbon-14 differ?

Back

They have a different number of neutrons.

Front

What is the hyphen form of an element with 25 nucleons and is manganese?

Back

Manganese- 25

Front

What is the average atomic mass of an element with an atomic mass of 55.845?

Back

55.845

Front

How many protons, neutrons, and electrons are in an atom with 8 protons, 8 neutrons, and 10 electrons?

Back

Proton = 8, Neutron = 8, Electron = 10.

Front

Define an atom.

Back

An atom is the smallest unit of matter that retains the properties of an element.

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 an isotope?

Back

Isotopes are variants of a particular chemical element that have the same number of protons but different numbers of neutrons.

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 mass number of an atom?

Back

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