8.P.1.1 and 8.P.1.2 Vocabulary Quiz

Which is a property of metalloids?

• the ability to be pulled into long wires
• the ability to be hammered into sheets
• the ability to be a liquid at room temperature
• the ability to conduct electricity under certain conditions

A student passes a magnet over 10 grams of a powder. Four grams of the powder stick to the magnet, while 6 grams do not. Which of these identifies the substance?

• element

• compound

• mixture

• solvent

Tags

NGSS.MS-PS2-3

Which is the best example of a heterogeneous mixture?

• sugar

• brass

• salad

• salt water

a substance (as gold, tin, copper, or bronze) that has a more or less shiny appearance, is a good conductor of electricity and heat, and usually can be made into a wire or hammered into a thin sheet

• reactivity
• metalloids
• non-metals
• metals

Tags

NGSS.MS-PS2-3

NGSS.MS-PS3-3

number of protons (or electrons) normally found in an atom of a given chemical element

• periodic table
• property
• atomic mass
• atomic number

Which best explains why the alkali metals are the most reactive group in the periodic table?

• They are radioactive.

• They have complete outer energy levels.

• They have the highest atomic masses of any elements.

• They have only one electron in their outer energy level.

The small numbers written below the symbol that tells you how many atoms there are

• coefficient

• atom

• subscript

• chemical formula

Tags

NGSS.MS-PS1-1

• element
• compound
• mixture of elements and compounds
• mixture of compounds

Tags

NGSS.MS-PS1-1

subatomic particles found on the outermost shell & responsible for the atom's reactivity

• neutrons
• valence electrons
• isotopes
• ions

How many periods are on the periodic table?

• 5

• 7

• 8

• 18