Unit 1 review for the final

Front

Which particles determine the mass of an atom?

Back

Protons and Neutrons determine the mass of an atom.

Front

What is the average weight of an apple in a basket with 73.6% Red Apples (120g each) and 26.4% Green Apples (116g each)?

Back

The average weight is 118.944 g.

Front

How many electrons do Alkaline earth metals need to lose to resemble noble gases?

Back

Alkaline earth metals need to lose 2 electrons.

Front

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

Back

Number of Neutrons = Mass Number - Atomic Number.

Front

What is the number of neutrons in the isotope 236U?

Back

The number of neutrons is 144.

Front

What section of the periodic table contains elements with electrons in the d orbitals?

Back

This section is called Transition metals.

Front

Define Protons.

Back

Protons are positively charged particles found in the nucleus of an atom.

Front

Define Neutrons.

Back

Neutrons are neutral particles found in the nucleus of an atom.

Front

Define Electrons.

Back

Electrons are negatively charged particles that orbit the nucleus of an atom.

Front

What is the significance of the atomic number?

Back

The atomic number determines the number of protons in an atom and defines the element.