Periodic Trends

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

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NGSS.HS-PS1-1

Electronegativity is...

• how good an atom is at attracting electrons
• the ability of an atom to lose electrons
• the energy required to remove an electron from a specific atom
• how easy it is to make friends. 

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NGSS.HS-PS1-1

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

• Gallium
• Aluminum
• Magnesium
• Strontium

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NGSS.HS-PS1-1

Which has the greater electronegativity : 
H or F?

• H
• F

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NGSS.HS-PS1-2

Which has the greater Electronegativity 
N or C?

• C
• N

Which has the greater Electronegativity : 
Cl or Al?

• Cl
• Al

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NGSS.HS-PS1-1

NGSS.HS-PS1-2

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 

The element with the largest electronegativity in the halogens is - 

• At
• F
• Cl
• Br

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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

Ionization energy is...

• the energy required to add an electron to a specific atom
• how much energy it takes to remove an electron from an atom
• the energy required to shield the outer electrons from the nucleus
• a measure of the ability of an atom to attract electrons

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NGSS.HS-PS1-2