Alchemy Flashcard 09

Front

What is the mass of an individual atom determined by?

Back

The mass of an individual atom is determined by the number of protons plus the number of neutrons.

Front

What is the atomic number of an element?

Back

The atomic number of an element is the number of protons in the nucleus of an atom.

Front

How do you calculate the atomic mass of an atom?

Back

The atomic mass of an atom is calculated by adding the number of protons and neutrons.

Front

What is the relationship between protons, neutrons, and electrons in a neutral atom?

Back

In a neutral atom, the number of protons equals the number of electrons.

Front

If an atom has 24 protons, how many electrons does it have?

Back

If an atom has 24 protons, it has 24 electrons.

Front

What is the total number of neutrons in an atom with an atomic number of 18 and a mass number of 40?

Back

The total number of neutrons is 22 (mass number - atomic number = 40 - 18).

Front

What does the atomic number indicate about an element?

Back

The atomic number indicates the identity of the element and its position in the periodic table.

Front

What is the significance of neutrons in an atom?

Back

Neutrons contribute to the atomic mass and help stabilize the nucleus.

Front

How do you find the number of neutrons in an atom?

Back

The number of neutrons can be found by subtracting the atomic number from the mass number.

Front

What is the mass number of an atom?

Back

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