Unit 1 Topic 4 Quiz: Organizing the Elements

In an Electron Configuration, like 1s²2s²2p⁶, the superscripts/exponents represent

• The number of electrons in the atom

• The number of Orbitals in the atom

• The number of Oreos in the atom

• The number of neutrons on the atom

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If the electron configuration for an atom is 1s²2s²2p⁶3s¹, how many total electrons does the atom contain?

• 7

• 11

• 3

• Cannot be determined

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Who was the first person to organize known elements by their Atomic Mass, leaving blank spaces to predict undiscovered elements?

• Mendeleev

• Democritus

• Ernest Rutherford

The IUPAC is responsible for chemical nomeclature (naming elements)

• True

• False

This highlighted vertical section of the Periodic Table is

• A group

• A period

• A party

• kinda sus, vote them out

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The highlighted, left to right, section on this table is

• A Group

• A Period

• A party

• minding its own business, why do we have to label it and give it a name? Maybe it has it's own name? Have we ever even tried just asking it what it wants its name to be?

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An Electron Dot Diagram

• shows how many valence electrons an atom has

• shows how many neutrons an atom has

• is a fun way to draw dots because drawing dots is just fun for some reason and scientists get bored sometimes

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You can tell the valence electrons of Representative Elements by their Group Number. An element from Group 15 would have ____ valence electrons

• 5

• 15

• 4

• 6

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This is an accurate Dot Diagram for Phosphorous, Group 15

• True

• False

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An atom can't have more than 8 valence electrons, meaning there will never be more than 8 dots in a Dot Diagram

• True

• False

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