What are the vertical columns on the periodic table called?

• groups

• periods

• protons

• valence electrons

Using just the valence electrons on each atom determine which 2 atoms should be in the same group.

• atom 1 and 2

• atom 3 and 4

• atom 1 and 4

• atom 2 and 3

Tags

NGSS.HS-PS1-1

An element is shiny, solid, magnetic, and metalic. Which group below should it NOT be in?

• Group 1

• Group 2

• Group 8

• Group 18

Which of the following would be elements that are found in the same period?

• Sn and Rb

• F and Cl

• K and Ba

• Se and Te

Which element is in Group 18 and period 4?

• Krypton

• Argon

• Xenon

• Bromine

Tags

NGSS.HS-PS1-1

Which of the following has the largest atomic radius?

• Beryllium

• Calcium

• Magnesium

• Strontium

Which element has the smallest atomic radius?

• Potassium

• Scandium

• Gallium

• Iron

Which element has the highest ionization energy?

• Bromine

• Fluorine

• Iodine

• Chlorine

Which element has the lowest ionization energy?

• Magnsium

• Aluminum

• Silicon

• Sulfur

Define atomic radius:

• The width of the nucleus of an atom

• The distance between the nucleus and the valence electrons of an atom

• The distance across an atom from one valence electron to another