Periodic Law

Identify the period and group of the element that has the electron configuration [Ne] 3s² 3p³.

• Period 2 group 2A

• Period 3 group 1A

• Period 3 group 3A

• Period 3 group 5A

Elements in the same group have the same ____.

• atomic radius

• electronegativity

• number of valence electrons

• number of protons

How many electrons does an atom generally need in its outer level to be the most stable?

• 4

• 8

• 10

• 12

The element that has the greatest electronegativity is

• Francium

• Hydrogen

• Chlorine

• Fluorine

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

If n stands for the highest occupied energy level, then ns2 would be the outer configuration for which group?

• Group 1A

• Group 2A

• Group 1B

• Group 7A

Tags

NGSS.HS-PS1-1

Into how many blocks is the periodic table divided?

• 1

• 2

• 3

• 4

What groups of elements does the p-block contain?

• Groups 1A and 2A

• Groups 3A-8A

• All group B elements

• Alkali metals and Alkaline Earth Metals

What is the Noble Gas configuration of the element in period 5 group 2A?

• [Kr]5s¹

• [Kr]5s4

• [Xe]5s²

• [Kr]5s²

Tags

NGSS.HS-PS1-1

What is the name of the elements in column 2? (Not the group number)

• Alkali metals

• Alkaline Earth metals

• Halogens

• Noble Gases

Which of the following is a d block element

• Be

• Si

• Ni

• Th