Atom Vocablury

Front

What does E=MC² represent in physics?

Back

E represents energy, M represents mass, and C represents the speed of light in a vacuum. This equation shows the relationship between mass and energy.

Front

What are isotopes?

Back

Isotopes are atoms that have the same number of protons but different numbers of neutrons, resulting in different atomic masses.

Front

Define an element in chemistry.

Back

An element is a pure substance that cannot be broken down into simpler substances by chemical means. It consists of only one type of atom.

Front

What is matter?

Back

Matter is anything that has mass and occupies space. It can exist in various states, including solid, liquid, and gas.

Front

What is an electron?

Back

An electron is a subatomic particle with a negative charge, found in the electron cloud surrounding the nucleus of an atom.

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 the difference between mass and weight?

Back

Mass is the amount of matter in an object, while weight is the force exerted by gravity on that mass.

Front

What is a molecule?

Back

A molecule is a group of two or more atoms bonded together, representing the smallest fundamental unit of a chemical compound.

Front

What is the role of neutrons in an atom?

Back

Neutrons are neutral particles found in the nucleus of an atom. They contribute to the atomic mass and help stabilize the nucleus.

Front

What is the periodic table?

Back

The periodic table is a tabular arrangement of chemical elements, organized by increasing atomic number, which displays periodic trends.