Chem CP Midterm Review #1

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.

Front

What is the chemical symbol for Carbon?

Back

C

Front

What determines the type of element that an atom represents?

Back

The number of protons in the nucleus determines the type of element.

Front

How many neutrons are in the isotope of lithium (Li)?

Back

The isotope of lithium (Li) has 5 neutrons.

Front

How many neutrons are in Carbon-14?

Back

Carbon-14 has 8 neutrons.

Front

Define atomic number.

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 difference between atomic weight and mass number?

Back

Atomic weight is the weighted average of the masses of an element's isotopes, while mass number is the total number of protons and neutrons in a specific isotope.

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 significance of the periodic table?

Back

The periodic table organizes elements based on their atomic number, electron configuration, and recurring chemical properties.

Front

What is the role of neutrons in an atom?

Back

Neutrons contribute to the mass of an atom and help stabilize the nucleus.