Effective Nuclear Charge and Atomic Radius

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

Tags

NGSS.HS-PS1-1

As you move across the periodic table atoms tend to get smaller because, ______________.

• the atoms have more mass.

• the atoms have less mass

• the atoms have a bigger effective nuclear charge

• the atoms have less electrons.

Tags

NGSS.HS-PS1-1

Which atom has the largest atomic radius?

• potassium

• rubidium

• francium

• cesium

Tags

NGSS.HS-PS1-1

The atom with the largest atomic radius in Group 18 is

• Ar

• He

• Kr

• Rn

Tags

NGSS.HS-PS1-1

Which of these has the largest atomic radius?

• oxygen

• fluorine

• sulfur

• chlorine

Tags

NGSS.HS-PS1-1

Which of these elements has the smallest atomic radius?

• C

• Ne

• K

• Al

• P

Tags

NGSS.HS-PS1-1

Atomic radius generally increases as we move __________.

• down a group and from right to left across a period

• up a group and from left to right across a period

• down a group and from left to right across a period

• up a group and from right to left across a period

Tags

NGSS.HS-PS1-1

Which of the following will have a larger radius than zinc?

• gallium

• aluminum

• magnesium

• strontium

Tags

NGSS.HS-PS1-1

Order the following from smallest to largest atomic radius:

Ra, Be, Ca, Rb, H

• Ra, Be, Rb, H, Ca

• Rb, H, Ca, Be, Ra

• Ra, Rb, Ca, Be, H

• H, Be, Ca, Rb, Ra

Tags

NGSS.HS-PS1-1

The effective nuclear charge of magnesium is

• +1

• +2

• +12

• +24

Tags

NGSS.HS-PS1-1