Electron Configurations

Energy levels are denoted by:

• letters

• numbers

• a combination of letters and numbers

• subscripts

Which of the following is not a correct designation for a sublevel?

• zz

• p

• d

• f

The third energy level can hold at most how many electrons?

• 2

• 8

• 18

• 32

Which area on the periodic table represents the electrons in the "d" sublevel?

• representative elements

• columns 3-8

• rare earth elements

• transition elements

Each row on the periodic table represents:

• an energy level

• a sublevel

• an electron

• an orbital

Tags

NGSS.HS-PS1-1

How many valence electrons does phosphorus have and in which sublevel(s) are they found?

• 3; p

• 5; s and p

• 2; s

• 3; s and p

Which of the following is the electron configuration for an alkali earth metal?

• 1s²2s¹

• 1s²2s²2p¹

• 1s²2s²2p⁵

• 1s²2s²2p⁶3s²

How many electrons at most are in the 4f sublevel?

• 10

• 8

• 18

• 14

The following electron configuration is for which element?

1s²2s²2p⁶3s²3p⁶4s²3d¹⁰

• Cu

• Zn

• Cd

• Ga

Choose the correct shortcut configuration for iodine.

• [Ar]4s²4d¹⁰4p⁵

• [Kr]5s²4d¹⁰5p⁵

• [Xe]5s²5d¹⁰5p⁵

• none of the above

Tags

NGSS.HS-PS1-1