Molecular Structure

Fill in the blank: A small particle that makes up most types of matter is called a(n) _______.

• atom

• molecule

• cell

• proton

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

Fill in the blank: A group of atoms that are held together by chemical bonds is called a(n) _______.

• molecule

• element

• ion

• compound

Tags

NGSS.MS-PS1-1

Fill in the blank: The positively-charged center of the atom that contains protons and neutrons is called the _______.

• nucleus

• electron cloud

• isotope

• molecule

Fill in the blank: Positively-charged particles found in the nucleus are called _______.

• protons

• neutrons

• electrons

• isotopes

Fill in the blank: Neutral particles with no charge, found in the nucleus, are called _______.

• neutrons

• protons

• electrons

• isotopes

Fill in the blank: Negatively-charged particles that surround the nucleus are called _______.

• electrons

• protons

• neutrons

• isotopes

Tags

NGSS.MS-PS2-3

Fill in the blank: The area where electrons are likely to be found is called the _______.

• electron cloud

• nucleus

• proton zone

• atomic core

Fill in the blank: Electrons found on the last level on the electron cloud in an atom are called _______.

• valence electrons

• core electrons

• protons

• neutrons

Fill in the blank: Matter made of only one kind of atom and cannot be broken down into simple substances is called a(n) _______.

• element

• compound

• mixture

• solution

Fill in the blank: A chart that contains all known elements, their properties and symbols is called the _______.

• Periodic Table of Elements

• Mendeleev Chart

• Atomic Structure Table

• Elemental Grid