Atomic Structure - Part I

Front

What is the atomic number of an element?

Back

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

Front

What is a neutron?

Back

A neutron is a subatomic particle found in the nucleus of an atom, with no electric charge.

Front

What is the mass number of an atom?

Back

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

Front

How many protons does fluorine have?

Back

Fluorine has 9 protons.

Front

What is the charge of an electron?

Back

An electron has a negative charge.

Front

What is the nucleus of an atom?

Back

The nucleus is the central part of an atom, containing protons and neutrons.

Front

What is the difference between atomic number and mass number?

Back

The atomic number is the number of protons, while the mass number is the total number of protons and neutrons.

Front

How many electrons does a sodium atom have?

Back

A sodium atom has 11 electrons.

Front

What is an isotope?

Back

An isotope is a variant of an element that has the same number of protons but a different number of neutrons.

Front

What does the periodic table represent?

Back

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