Periodic Chart

The seven horizontal rows on the periodic table. It indicates the number of electron "shells" or orbitals surrounding the nucleus.

• Groups

• Periods

• Families

• Neutrons

Element R and Q have the same number of Valence Electrons. These elements both have similar chemical behavior, but Element R has fewer energy shells. Which statement best describes the positions of the 2 elements on the Periodic Table.

• The two elements are in the same period, with Element R the first element in the period and Element Q the last element.

• The two elements are side by side in the same period, with Element Q to the left of Element R.

• The two elements are in the same group, with Element R just above Element Q

• The two elements are in the same group, with Element Q at the top of the group and Element R at the bottom.

Tags

NGSS.MS-PS1-1

A portion of the periodic table is shown below. Which pair of elements would have the same number of valence electrons?

• Lithium and Beryllium

• Magnesium and Sodium

• Lithium and Sodium

• Magnesium and Lithium

The majority of the elements on the periodic table are

• metals

• non-metals

• metalloids

• alkali metals

Where on the periodic table are the metals located?

• right of the staircase line (zig-zag)

• left of the staircase line (zig-zag)

• bordering the staircase line (zig-zag)

Where on the periodic table are the non-metals located?

• right of the staircase line (zig-zag)

• left of the staircase line (zig-zag)

• bordering the staircase line (zig-zag)

Where on the periodic table are the metalloids located?

• right of the staircase line (zig-zag)

• left of the staircase line (zig-zag)

• bordering the staircase line (zig-zag)

What general category describes the majority of the elements in the periodic chart?

• metals

• liquids

• nonmetals

• gases

How many valence electrons does sodium have?

• 1

• 2

• 3

• 4

Tags

112.20.b.5.B

Elements in the same column of the periodic table always have the same # of _______ as one another.

• Protons

• Neutrons

• Electrons

• Valence Electrons

Tags

112.20.b.5.B