The ability to attract an electron in a chemical bond

• electronegativity

• electron affinity

• metallic character

• ionization energy

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The energy it takes to remove an electron from an atom in the gas phase

• electron affinity

• electronegativity

• metallic character

• ionization energy

Ionization energy increases

• from L to R and from bottom to top

• from L to R and from top to bottom

• from R to L and from bottom to top

• from R to L and from top to bottom

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metallic character is greatest

• in the top right corner

• in the bottom right corner

• in the top left corner

• in the bottom left corner

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Atomic radius decreases from left to right across a period because from left to right there is

• increasing number of valence electrons

• increasing shielding

• increasing effective nuclear charge

• increasing number of protons in the nucleus

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Which of the following will have a lower ionization energy than Scandium (Sc)?

• Helium (He)
• Titanium (Ti)
• Calcium (Ca)
• Magnesium (Mg)

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As atoms of elements in group 16 are considered in order from top to bottom, the electronegativity of each successive element....

• decreases
• increases
• remains the same
• none of the above

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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

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

• Ar
• He
• Kr
• Rn

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NGSS.HS-PS1-1

The element with the highest electronegativity is -

• At

• F

• Cl

• Br

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