Chemistry in Biology

Which defines an atom?

• Building Block of energy

• Building Block of matter

• charged particle

• smallest particle

Tags

NGSS.MS-PS1-1

The smallest piece of an element:

• quark

• electron

• shell

• atom

Protons and neutrons are found in the center of the atom called the:

• nucleus

• neutron

• shell

• cell

Tags

NGSS.MS-PS1-1

Classification system for elements is called:

• Elements

• Periods

• The Periodic Table of Elements

• Families

The subatomic particles are called:

• protons, nucleus and electrons

• protons, electrons and neutrons

• protons, positives and negatives

• cloud, shell and quarks

Tags

NGSS.MS-PS1-1

Substances that have only one kind of atom are called:

• elements

• nitrogen

• electrons

• nucleus

Electrons have a _____ charge.

• neutral

• negative

• positive

• both positive and negative

Tags

NGSS.MS-PS1-1

NGSS.MS-PS2-3

The abbreviation for an element:

• element name

• atomic number

• chemical symbol

• atomic symbol

What is the sum of an atom's protons and neutrons called?

• atom

• atomic theory

• atomic mass

• atomic number

The _____ is based on the number of protons in the nucleus of the atom.

• atomic structure

• periodic table of the elements

• atomic number

• atomic mass