Module 1 Vocabulary: Structure of Atoms

Fill in the blank: A small particle that is the building block of matter is called an _______.

• atom

• molecule

• cell

• proton

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

Matter with a composition that is always the same is called a (a)   .

• substance
• mixture
• solution
• element

A substance made of only one kind of atom is called an (a)   .

• element
• compound
• mixture
• solution

Fill in the blank: Two or more atoms that are held by chemical bonds and act as a unit are called a _______.

• molecule

• element

• ion

• compound

Tags

NGSS.MS-PS1-1

Fill in the blank: A substance made of two or more elements that are chemically joined in a specific combination is called a _______.

• compound

• mixture

• element

• solution

Tags

NGSS.MS-PS1-1

Fill in the blank: Matter that can vary in composition is called a _______.

• mixture

• element

• compound

• solution

Fill in the blank: A mixture in which the substances are not evenly mixed is called a _______.

• heterogeneous mixture

• homogeneous mixture

• solution

• compound

Fill in the blank: A mixture in which two or more substances are evenly mixed, but not bonded together, is called a _______.

• homogeneous mixture

• heterogeneous mixture

• compound

• element

Fill in the blank: The region at the center of an atom that contains most of the mass of the atom is called the _______.

• nucleus

• electron cloud

• proton shell

• valence band

Tags

NGSS.MS-PS1-1

Match each particle with its correct description.

• Neutral particle in the nucleus of an atom

• proton

• Particle of light

• photon

• Positively charged particle in the nucleus of an atom

• neutron

• Negatively charged particle orbiting the nucleus

• electron