Periodic Trends

Which group is referred to as the Noble Gases?

• Group 1

• Group 2

• Group 17

• Group 18

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What period is Phosphorus found in?

• 1

• 2

• 3

• 4

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Groups 3 - 12 are called

• alkali metals

• transition metals

• alkali earth metals

• halogens

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Which group of elements in the periodic table is known as the halogens?

• group 15

• group 16

• group 17

• group 18

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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

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Francium (Fr) has the lowest ionization energy in Group 1 because - 

• it has the smallest number of valence electrons

• it has the greatest atomic mass

• it has the greatest number of protons, so it attracts its electrons the strongest

• its 1 valence electron is very far from the nucleus, so little energy is needed to remove it

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Which of the following halogens has the greatest electronegativity?

• Chlorine (Cl)

• Bromine (Br)

• Iodine (I)

• Astatine (At)

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Which group of elements has the lowest ionization energies?

• Alkali Metals (Group 1)

• Alkaline Earth Metals (Group 2)

• Halogens (Group 17)

• Noble Gases (Group 18)

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What is the amount of energy required to remove an electron from an atom?

• atomic energy

• ionization energy

• ionic energy

• electron energy

What is a measure of the tendency of an atom to attract a bonding pair of electrons when the atom is in a compound?

• ionization energy

• electropositivity

• electronegativity

• electron energy

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