Periodic Trends

Which element has properties most similar to those of Lithium?

• Carbon (C)

• Magnesium (Mg)

• Sodium (Na)

• Oxygen (O)

Which element has properties most similar to those of Fluorine?

• Chlorine (Cl)

• Oxygen (O)

• Calcium (Ca)

• Boron (B)

Elements that have similar properties are found in the same

• group

• period

• table

• energy level

Which of the following groups contains the most active metals?

• group 1

• group 2

• group 17

• group 18

Which element is the most reactive?

• Beryllium

• Calcium

• Strontium

• Radium

Tags

NGSS.MS-PS1-2

Which element is the least reactive?

• Lithium

• Potassium

• Cesium

• Francium

Elements on the modern periodic table are arranged by

• atomic number

• atomic mass

• alphabetical order

• first two letters

Rows on the modern periodic table are called

• groups

• periods

• families

• gases

The number of each period represents the number of

• energy levels

• neutrons

• electrons

• nuclei

What element can be found in period 3 group 13?

• Boron (B)

• Aluminum (Al)

• Gallium (Ga)

• Silicon (Si)