periodic table

Which of the following is the most metallic element in period 3?

• Boron (B)
• Sodium (Na)
• Argon (Ar)
• Silicon (Si)

Which of these element is the least metallic?

• Potassium (K)
• Carbon (C)
• Sulfur (S)
• Neon (Ne)

What group of elements don't have individual names?

• Alkaline-earth Metals
• Transition Metals
• Alkali Metals
• Halogens

Most of the elements on the periodic table are classified as _____.

• Metals
• Nonmetals
• Metalloids
• Periods

alkali metals are kept in ........

• IIA

• IIIA

• IA

• 0

Number of valence electrons in halogens is ..........

• 1

• 4

• 3

• 7

which group has the strong electronegative character

• alkali metal

• lanthanides

• inert gases

• halogens

Sulphur is........

• Non metal

• Metal

• Metalloid

• Inert gases

choose the wrong statement

• Na is more active than Li

• O is more active than S

• Mg is more active than Al

• Cl is more active than F

What is the valency of Krypton

• 0

• 1

• 2

• 3