Atomic Radius Trend

Which of the following will have a larger radius than Zinc?

• Gallium

• Aluminum

• Magnesium

• Strontium

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NGSS.HS-PS1-1

As you move down the periodic table atoms get bigger.  This is because ____________.

• The atoms have more mass.

• The atoms have more protons.

• The atoms have more energy levels

• The atoms have more neutrons

As you move across the periodic table atoms tend to get smaller because, ______________.

• the atoms have more mass.

• the atoms have less mass

• the atoms have more protons.

• the atoms have less electrons.

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NGSS.HS-PS1-1

The atom with the largest atomic radius in Group 18 is - 

• Ar

• He

• Kr

• Rn

Which statement correctly and completely identifies a trend?

• Atomic radius decreases across a period and increases down a group.

• Electronegativity decreases across a period and decreases down a group.

• Ionization energy increases across a period and increases down a group.

• Ionic radius increases across a period and increases down a group.

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NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which periodic group has the smallest atomic radius?

• Alkali metals

• Halogens

• Noble Gases

• Transition metals

The more protons there are, the  ____ .

• Weaker the pull

• Smaller the electrons

• Stronger the pull

• The bigger the electrons

Which one has the largest radius?

• Lithium (Li, atomic #3)

• Boron (B, atomic #5)

• Neon (Ne, atomic #10)

• Nitrogen (N, atomic #7)

Tags

NGSS.HS-PS1-1

As you move down the periodic table atoms get bigger.  This is because ____________.

• The atoms have more mass.

• The atoms have more protons.

• The atoms have more energy levels

• The atoms have more nuetrons

Tags

NGSS.HS-PS1-1

As you move across the periodic table atoms tend to get smaller because, ______________.

• the atoms have more mass.

• the atoms have less mass

• the atoms have more protons.

• the atoms have less electrons.

Tags

NGSS.HS-PS1-1