"All that Matters" Test

Elements with common properties are organized into __________ on the periodic table. Their location on the periodic table helps you predict these properties.

• number of protons

• number of neutrons

• atomic mass

• families

Dimitri Mendeleev created the first:

• chemical reaction

• metal alloy

• periodic table

• semiconductor

Tags

NGSS.HS-PS1-1

An element’s atomic ________________ shows the number of protons it has. This also tells you the number of electrons since protons and electrons are equal.

• mass

• symbol

• number

• period

What do we use to balance equations?

• subscripts

• coefficients

• superscripts

• exponents

Tags

NGSS.MS-PS1-5

The Law of Conservation of Matter and Energy states:

• The total mass of the reactants is greater than the total mass of the products

• The total mass of the reactants is the same as the total mass of the products

• The total mass of the reactants is less than the total mass of the products

• The total mass of the reactants and products cannot be measured

Tags

NGSS.MS-PS1-5

Which of the following is an element?

• sugar

• air

• water

• carbon

Which best describes the sequence of the elements in the periodic table as you move from left to right?

• highly reactive gases, relatively nonreactive metals, metalloids, very nonreactive

• highly reactive metals, relatively nonreactive metals, metalloids, reactive nonmetals,

  nonreactive gases

• nonreactive gases, metalloids, nonreactive metals, highly reactive metals, highly reactive

  gases

• nonreactive gases, nonreactive metals, highly reactive metals, metalloids,reactive

  nonmetals, reactive gases

True or False: To find the Neutrons you subtract the number of protons from the atomic mass.

• True

• False

Tags

NGSS.MS-PS1-1

Which of the following elements is an example of a metalloid that has characteristics of both metals and nonmetals and is often used in computers?

• Hydrogen

• Iron

• Silicon

• Neon

Using your periodic table, match the element name to the symbol

• Potassium

• K

• Carbon

• Au

• Mercury

• C

• Gold

• Hg