Applied Chem Unit 4 Review (In Class)

Which element in Period 2 has the LARGEST atomic radius?

• Be

• C

• Na

• Li

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Of the halogens, which has the SMALLEST radius?

• F

• Br

• He

• At

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Which of the period 3 elements has the LARGEST electronegativity?

• Mg

• Cl

• Na

• F

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Which element has the LARGEST ionization energy?

• Carbon (C)

• Nitrogen (N)

• Oxygen (O)

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Which element has the GREATEST metallic character?

• Lithium (Li)

• Helium (He)

• Phosphorus (P)

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As you move down a group, atomic radius increases because - 

• you add more and more neutrons
• you add more and more protons
• you add more and more shells (energy levels)
• you add more atomic mass

As you move across the periodic table from left to right, the atomic radius decreases.  This is because - 

• the number of protons increases, so attraction to electrons increases
• the number of energy levels increases
• the number of electrons increases
• the atomic mass increases

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The element with the SMALLEST ionization energy in Period 6 is - 

• Rn
• Cs
• Os
• Tm

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The energy required to remove electrons is the definition of: 

• Electronegativity
• Atomic Number
• Atomic Radius
• Ionization

Which has the LARGER electronegativity: 
N or C?

• C
• N

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NGSS.HS-PS1-1

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