Determining Protons Electrons Neutrons

Front

What is the atomic mass of an element?

Back

The atomic mass of an element is the weighted average mass of the isotopes of that element, measured in atomic mass units (amu).

Front

How do you determine the number of protons in an atom?

Back

The number of protons in an atom is equal to the atomic number of the element, which is unique to each element.

Front

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

Back

In a neutral atom, the number of protons is equal to the number of electrons.

Front

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

Back

The number of neutrons can be found by subtracting the atomic number (number of protons) from the atomic mass (rounded to the nearest whole number).

Front

What is the atomic number of an element?

Back

The atomic number is the number of protons in the nucleus of an atom and determines the element's identity.

Front

What is the significance of the bottom number in an element's symbol on the periodic table?

Back

The bottom number typically represents the atomic mass of the element, which is the average mass of its isotopes.

Front

How many protons are in an atom of Carbon?

Back

An atom of Carbon has 6 protons.

Front

What is the electron configuration of a neutral Neon atom?

Back

The electron configuration of a neutral Neon atom is 1s² 2s² 2p⁶.

Front

How many electrons does an atom of Sodium have?

Back

An atom of Sodium has 11 electrons.

Front

What is the mass number of an atom?

Back

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