Valence Electrons and Reactivity Quiz

What is a valence electron?

• An electron in the innermost shell of an atom

• An electron in the outermost shell of an atom

• An electron that does not participate in bonding

• An electron that is not part of any shell

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What determines an element's reactivity?

• The number of protons

• The number of neutrons

• The number of valence electrons

• The number of electron shells

What does the periodic table arrange elements by?

• Increasing atomic number

• Decreasing atomic mass

• Alphabetical order

• Increasing density

Tags

NGSS.MS-PS1-1

What does the atomic number of an element represent?

• Number of protons

• Number of neutrons

• Number of electrons

• Atomic mass

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NGSS.MS-PS1-1

Which of the following is a property of metals?

• Brittle

• Poor conductor of heat

• Ductile

• Low density

What does it mean if a metal is malleable?

• It can be drawn into wires

• It can be hammered into thin sheets

• It is a poor conductor of electricity

• It has a low melting point

Which property is NOT typical of metals?

• High melting point

• Shiny luster

• Low reactivity

• High density

Where are the most reactive metals located on the periodic table?

• Top right corner

• Bottom left corner

• Top left corner

• Bottom right corner

What does "luster" refer to in the context of metals?

• The weight of a metal

• The color of a metal

• The way a metal's surface reflects light

• The temperature a metal can withstand

Which of the following is a characteristic of a metal with high luster?

• Rough texture

• Shiny appearance

• Heavy weight

• High melting point