Basics of the Periodic Table

Which element is classified as a metalloid (semi-metal)?

• sulfur

• silicon

• barium

• bromine

Which group contains a liquid that is a nonmetal at STP?

• 12

• 14

• 16

• 17

The properties of elements are periodic functions of their

• mass numbers

• atomic masses

• atomic radii

• atomic numbers

Tags

NGSS.HS-PS1-1

Given the electron dot diagram, the valence electrons represented by the electron dot diagram could be those of atoms in Group

• 13

• 15

• 3

• 16

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which period of the Periodic Table contains more metallic elements than nonmetallic elements?

• Period 1

• Period 2

• Period 3

• Period 4

Which characteristics describe most nonmetals in the solid phase?

• They are malleable and have metallic luster.

• They are malleable and lack metallic luster.

• They are brittle and have metallic luster.

• They are brittle and lack metallic luster.

Which element is in Group 2 and Period 7 of the Periodic Table

• magnesium

• manganese

• radium

• radon

Which element is a liquid at STP and has low electrical conductivity?

• silver

• mercury

• barium

• bromine

When metals form ions, they tend to do so by

• losing electrons and forming positive ions

• losing electrons and forming negative ions

• gaining electrons and forming positive ions

• gaining electrons and forming negative ions

As the atoms of the Group 17 elements in the ground state are considered from top to bottom, each successive element has

• the same number of valence electrons and similar chemical properties

• the same number of valence electrons and identical chemical properties

• an increasing number of valence electrons and similar chemical properties

• an increasing number of valence electrons and identical chemical properties