Atomic Radius

As you move ______ a group, more energy levels are added, which increases the size of the atom

• down

• up

• diagonal

• away

Which element's atom is larger? Nitrogen or Phosphorus?

• Nitrogen

• Phosphorus

Tags

NGSS.HS-PS1-1

Which element's atom is the smallest?

• Rhodium

• Silver

• Cadmium

• Tin

Tags

NGSS.HS-PS1-1

Size _________ as you go across a period on the periodic table.

As you move down the periodic table atoms get bigger.  This is because ____________.

• The atoms have more mass.

• The atoms have more protons.

• The atoms have more energy levels

• The atoms have more nuetrons

The atom with the largest atomic radius in Group 18 is - 

• Ar

• He

• Kr

• Rn

Tags

NGSS.HS-PS1-1

Which atom is bigger?

• H

• Li

As you move down a group in the periodic table, the atomic radius generally:

• A) Increases

• B) Decreases

• C) Remains the same

• D) Fluctuates

Which of the following elements has the largest atomic radius?

• A) Helium

• B) Oxygen

• C) Sodium

• D) Cesium

Tags

NGSS.HS-PS1-1

The atomic radius of an element is determined by:

• A) The number of protons

• B) The number of neutrons

• C) The number of electron shells

• D) The number of valence electrons