Matter and Energy Chap. 13 Test

Front

What are atoms of the same element that have different mass numbers?

Back

isotopes

Front

Term for the minimum amount of fissionable material required for a chain reaction to occur.

Back

critical mass

Front

Back

26

Front

Which image illustrates the Bohr model of the atom? Options: Image a, Image b, Image c, Image d

Back

Image c

Front

In what type of radioactive decay is an electron emitted?

Back

beta decay

Front

Type of decay that releases energy without changing the number of protons and neutrons.

Back

gamma decay

Front

What type of nuclear decay involves an atom ejecting a clump of two protons and two neutrons?

Back

alpha decay

Front

What idea states that tiny particles do not absorb or release energy in a smooth flow but in specific amounts?

Back

quantum theory

Front

What idea states that no two books can occupy the same space at the same time, similar to how no two electrons in an atom can have the same set of four quantum numbers?

Back

Pauli exclusion principle

Front

What is the only metal that is liquid at room temperature?

Back

mercury