Unit 11 Quizizz

What is a period?

• The columns on the periodic table

• The categories of metals/nonmetals/metalloids

• The rows on the periodic table

• The number on an element

The columns on the periodic table are called . . .

What is the definition of a chemical bond?

• The force that holds two or more atoms together

• The collision of two atoms

• Centripetal force

• The cause of mutations

Tags

NGSS.HS-PS1-3

NGSS.HS-PS1-4

What is a valence electron?

• The electrons in an atom responsible for movement

• The outermost force of an atom

• The outermost electrons in an atom responsible for chemical bonding

• I didn't study

A model that represents valence electrons in an atom as dots around the element's chemical symbol is known as . . .

What is an unstable atom?

• An atom which is reactive and looks for chemical bonds.

• An atom that has radioactive properties.

• An atom with more electrons than protons.

• An atom that has more protons than electrons.

What is a covalent bond?

• A chemical bond between unstable electrons

• A chemical bond

  formed when two atoms share one or more pairs of valence electrons.

• A chemical bond made when ice freezes.

• The creation of unstable atoms.

What forms oxygen atoms and hydrogen atoms share unpaired electrons?

• They form two covalent bonds

  and become a stable covalent compound.

• They form an unstable compound.

• They share their nuclei and become a new type of atom.

• I have zero idea

Tags

NGSS.MS-PS1-1

What is an example of a polar molecules?

• Fats

• Olive Oil

• Water

• Methane

A molecule is . . .

• A pool of atoms which form a compound

• A group of electrons that combine and generate electricity.

• A

  group of atoms held by covalent

  bonding that acts as an independent unit.

• Unused electrons left over after chemical bonding.

Tags

NGSS.MS-PS1-1