Atoms, Molecules, Elements, and Compound

A___ is building block of life.

What are the different characteristics of an atom

• electrons, protons, and neutrons

• molecules, elements, and compounds

What are the fundamental components that determine the characteristics of an atom?

• Protons, neutrons, and electrons

• Bricks, walls, and matter

• Hydrogen and oxygen

• Elements and compounds

How many different types of atoms are currently known?

• 2

• 10

• 118

• An infinite number

Are you enjoying the video lesson?

• Yes

• No

Which statement best describes an element?

• A substance made up of different types of atoms.

• A pure substance consisting of only one type of atom.

• An atom that is unstable and combines with other atoms.

• A group of atoms that cannot exist independently.

What is the definition of a molecule?

• A substance made up of different types of atoms that are unstable.

• A pure substance consisting of only one type of atom that cannot exist freely.

• An atom or group of atoms that are stable and can exist independently.

• A metallic bond formed by combining many atoms.

Molecules can either be made of elements or compounds.

• TRUE

• FALSE