Introduction to the Periodic Table

What is the atomic number for the NEUTRAL atom pictured?

• 7

• 8

• 14

• 16

Tags

NGSS.MS-PS1-1

What element can be found at group 9, period 4?

• Beryllium

• Fluorine

• Rhodium

• Cobalt

Elements in the same horizontal row have the same __

• structure

• energy levels

• properties

• atomic mass

What is the symbol for lead?

• Le

• L

• Sb

• Pb

The atomic number for Gold is ___

• 31

• 32

• 79

• 64

What element is a metalloid and is also in period 3?

• Boron

• Silicon

• Germanium

• Scandium

What are group 2 elements called?

• alkali metals

• alkaline earth metals

• halogens

• noble gases

What kind of atom is the element in group 13, period 4?

• aluminum

• beryllium

• gallium

• indium

What are the horizontal rows of the periodic table called?

• families

• shells

• layers

• periods

Elements in the periodic table are listed in order of their

• atomic mass

• density

• atomic number

• melting point