Electron Configuration, Orbitals, Valence, & Charges Study

What tells you how many electron shells an atom has?

• Period

• Group

• Atomic Number

• Proton Number

What tells you how many valence electrons an atom has?

• Period

• Group

• Atomic Number

• Proton Number

What are valence electrons?

• The electrons in the outermost shell

• The electrons in the innermost shell

• The total number of electrons

• Electrons

How many electrons does the outershell must have to reach an octet? Is the atom most reactive or least reactive when it has an octet?

• 8

• 18

• Least reactive

• Most reactive

Schrodinger helped us determine....

• the volume of space in which an electron can be found

• how to calculate the percent abundance of each isotope

• that all electrons are fixed orbits around the nucleus

• every element has naturally occuring isotopes

What is the order of electron configuration?

• Shell, orbital, subshell, electrons

• Electrons, Orbitals, Subshell, Shell

• Shell, Subshell, Orbitals, Electrons

• Subshell, Electrons, Shell, Subshell

What letters represent the subshells?

• a, b, c, d

• s, p, d, f

• s, q, d, f

• d, i, c, k

What is the maximum number of electrons an orbital can have?

• 
• 
• 
• 

What is the electron configuration of Nitrogen?

(I marked where the element is)

• 1s2 2s2 2p3

• 1s2 2s2 2p6

• 1s2 2p3

• 1s2 2s2 2p6 3s2

What is the electron configuration of selenium 2- ?
(I marked where the element is on the table)

• 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p2

• 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p4

• 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6

• 1s2 2s2 2p6 3s2 3p6 4s2 4d10 4p6