Chemical Element

The most expensive naturally occurring element is ...

• Californium

• Francium

• Gold

• Plutonium

The lightest metallic element is ...

• Lithium

• Hydrogen

• Potassium

• Iron

Tags

NGSS.HS-PS1-1

The bond formed between carbon and this element is the strongest bond in organic chemistry and is very stable. Name the given element

• Oxygen

• Chlorine

• Fluorine

• Cobalt

The must abundant element in the Universe

• Oxygen

• Nitrogen

• Helium

• Hydrogen

Tags

NGSS.HS-PS1-1

Select the most stable isotope of Uranium

• Uranium-234

• Uranium-238

• Uranium-236

• Uranium-235

Tags

NGSS.HS-PS1-8

Name the chemical element that means "goblin" in German

• Gallium

• Cobalt

• Vanadium

• Beryllium

The element meaning "lazy" in Greek

• Helium

• Neon

• Argon

• Iodine

Fill the blank;

The most abundant metal on the Earth's crust is ...

• Aluminium

• Iron

• Calcium

• Sodium

Element meaning "silver" in Spanish is ...

• Argentum

• Platinum

• Zinc

• Plutonium

Which one from following elements is the only one that will burn in pure nitrogen gas?

• Titanium

• Nickel

• Mercury

• Lead

Tags

NGSS.HS-PS1-1