8th Grade P1.2 Periodic Table

The vertical columns on the periodic table are called

• Actinide series

• transitional metals

• periods

• groups or families

Which number is the atomic mass of Argon?

• 18

• 40

• 40 - 18 = 22

• 40 + 18 = 58

How many protons does Bromine have?

• 167

• 80 - 35 = 45

• 35

• 80

How many valence electrons does Carbon have?

• 1

• 3

• 4

• 8

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NGSS.MS-PS1-1

Is Ca (Calcium) a metal, nonmetal or metalloid?

• metal

• nonmetal

• metalloid

• megalloid

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NGSS.MS-PS1-1

Which of these shows only properties of metals?

• shiny, mostly solid, good conductors of heat and electricity

• dull, mostly gases, good insulators

• shiny, have characteristics of both metals and nonmetals

• dull, good insulators, magnetic

What determines the chemical reactivity of an atom?

• protons

• valence electrons

• electron shells

• neutrons

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NGSS.HS-PS1-1

NGSS.HS-PS1-2

The same student works with a new substance. He concludes it conducts electricity very well. It has a very shiny luster. When he hammers it, it simply dents and flattens. What is the most likely substance type?

• Metal

• Metalloid

• Nonmetal

A subatomic particle that has a negative charge

• nobles gases

• protons

• electrons

• neutrons

neutron

• A subatomic particle that has a positive charge and that is found in the nucleus of an atom

• not able to conduct heat or electricity, little to no metallic luster

• A subatomic particle that has a negative charge

• A small particle in the nucleus of the atom, with no electrical charge

Tags

NGSS.MS-PS1-1