Atoms

Front

What is an atom?

Back

An atom is the smallest unit of matter that retains the properties of an element. It consists of a nucleus containing protons and neutrons, surrounded by electrons in an electron cloud.

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

How many protons does an atom with atomic number 6 have?

Back

6 protons.

Front

Where are electrons located in an atom?

Back

Electrons are found in the electron cloud surrounding the nucleus.

Front

What is the charge of a neutron?

Back

Neutrons have no charge; they are neutral.

Front

What particle orbits the nucleus of an atom?

Back

Electrons orbit the nucleus of an atom.

Front

How are elements arranged in the modern periodic table?

Back

Elements are arranged by atomic number.

Front

What is the charge of a proton?

Back

Protons have a positive 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 an atom and a molecule?

Back

An atom is a single unit of an element, while a molecule is a group of two or more atoms bonded together.