Quiz 2: Periodic Trends

The ________ are the electrons in the outer orbitals that are used in chemical bonds.

• Protons

• Neutrons

• Inner electrons

• Valence electrons

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

How can you find the number of valence electrons in an element?

• Looking at the period number

• Looking at the group number

• Looking at the atomic number

• Looking at the atomic mass

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

How many valence electrons does Magnesium have?

• 1

• 2

• 3

• 4

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Heavier elements (elements with a larger atomic mass) tend to be toward...

• The top of the periodic table

• The bottom of the periodic table

• the corners of the periodic table

• Each edge of the periodic table

What period is the element Chlorine (symbol Cl) in?

• Period 3

• Period 1

• Period 2

• Period 6

What group is the element Fluorine (F) in?

• Group 17

• Group 9

• Group 6

• Group 3

Tags

NGSS.HS-PS1-1

What happens to an element’s atomic radius as you move from left to right across a period?

• it increases

• it decreases

• it stays the same

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Why does an element’s atomic radius increase down a group?

• Adding protons

• Adding energy levels/electron shells

• Adding indivdual electrons

• It doesn't

Which of the following elements has the smallest atomic radius?

• Carbon (C)

• Oxygen (O)

• Fluorine (F)

• Neon (Ne)

Tags

NGSS.HS-PS1-1

True or False? Lithium (Li) is a larger element than Potassium (K).

• True

• False