Homework Week 5: Periodic Trends

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

• Gallium
• Aluminum
• Magnesium
• Strontium

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NGSS.HS-PS1-1

Which atom has the largest atomic radius?

• potassium
• rubidium 
• francium
• cesium

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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 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.

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NGSS.HS-PS1-1

NGSS.HS-PS1-2

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

• Ar
• He
• Kr
• Rn

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NGSS.HS-PS1-1

Which periodic group has the smallest atomic radius?

• Alkali metals
• Halogens
• Noble Gases
• Transition metals

Tags

NGSS.HS-PS1-1

Atomic radius generally increases as we move __________.  

• down a group and from right to left across a period 
• up a group and from left to right across a period 
• down a group and from left to right across a period 
• up a group and from right to left across a period 

Tags

NGSS.HS-PS1-1

Which element has 3 more electrons than Calcium (Ca) ?

• Fluorine
• Vanadium
• Tungsten
• Argon

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NGSS.HS-PS1-1

This element has 20 neutrons and 19 negatively charged particles

• Kr
• K
• Rb
• Xe

Tags

NGSS.HS-PS1-1

Valence electrons are found in the ______ energy level.

• Farthest in
• Middle
• Outermost

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2