Periodic Trends

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

• Gallium (Ga)

• Aluminum (Al)

• Magnesium (Mg)

• Strontium (Sr)

Which of the following will have a higher electronegativity than arsenic (As)?

• Carbon (C)
• Neon (Ne)
• Antimony (Sb)
• Germanium (Ge)

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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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Which atom has the largest atomic radius?

• potassium (K)

• rubidium (Rb)

• francium (Fr)

• cesium (Cs)

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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 neutrons

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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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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The element with the lowest electronegativity in Period 3 is -

• Na

• Cl

• Ar

• Mg

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Mg ionizes to a charge of ______.

• +1

• +2

• -1

• -2

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N ionizes to a charge of _______.

• +3

• -3

• +2

• -2

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