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

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

• 7

• 11

• 3

• Cannot be determined

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

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?

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

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

This is an accurate Dot Diagram for Phosphorous, Group 15

• True

• False

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