Periodic Trends

Which of the following has a larger radius than Zinc

• Gallium

• Strontium

• Aluminum

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Which elements valence electrons are easier to remove? Lithium or Potassium?

• Lithium

• Potassium

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Which atom has the most valence electrons

• Ca

• C

• Cl

• Si

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As you move across the periodic table, from left to right, ionization energy is __________________.

• decreasing

• increasing

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As you move across a period, do the atoms get smaller or larger?

• smaller

• larger

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How many valence electrons does a neutral atom of nitrogen have?

• 2

• 4

• 5

• 6

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Which atom is more electronegative?

• Si

• S

• Cl

• P

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As you move down the periodic table, atoms tend to get bigger because...

• They have more mass

• They have more protons

• They have more energy levels

• They have more mass

Electronegativity is

• the ability of an atom to accept/ attract electrons

• the energy required to remove an electron from an atom in a gaseous or ion state

• a life philosophy (the glass is half empty)

• the ability of an atom to lose electrons

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Ionization energy is ....

• the energy required to add an electron to an atom

• the energy required to shield the outer electrons from the nucleus

• a measure of the ability of an atom to attract electrons

• how much energy it takes to remove an electron from an atom