Atomic Radius and Ionization Energy Exam

The radius of an atom can only be found by?

• Asking the atom nicely
• Measuring the distance between the nuclei of two touching atoms and halving the distance.

• Measuring the weight of the atom
• Guessing based on the atom's color

The radius of an atom is dependent on what two things?

• Nuclear charge and distance

• The I.E.

• Temperature and pressure of the atom
• Color and weight of the atom

What is the period trend in periodic table with radius?

• Atomic radius increases
• Atomic radius remains constant
• Atomic radius decreases
• Atomic radius fluctuates

Protons do what as you move right across a period?

• Vaporize
• Increase
• Stay the same
• Decrease

The energy levels are more attracted to the nucleus and are?

• farther from the nucleus
• unaffected by the nucleus
• pulled in

• randomly distributed around the nucleus

Atomic size will increase as you do what in a group?

• Move down
• Stay in the same place
• Move up
• Rotate around

When you move down a group in the periodic table there is?

• increase in the number of energy levels or shells
• increase in the number of protons in the nucleus
• no change in the number of energy levels or shells
• decrease in the number of energy levels or shells

What is the shielding effect?

• Reduction in the attractive force between the nucleus and the outermost electrons
• Increase in the attractive force between the nucleus and the outermost electrons
• The process of adding more electrons to the outermost shell
• The process of removing electrons from the outermost shell

Tags

NGSS.HS-PS1-1

While there is an increase in number of protons down a group (nuclear charge), this does not affect the magnitude of attraction from the nucleus due to?

• increase in the number of neutrons
• decrease in the number of electrons
• increase in the number of electrons in the outer shell
• shielding effect

Tags

NGSS.HS-PS1-3

What is an easy way to remember atomic radius?

• It is the number of protons in the nucleus
• It is the mass of the atom
• Think of snowman.

• It is the number of electrons in the outer shell

Tags

NGSS.HS-PS1-1