Elementos Químicos e Mendeleev

What is the nature of the elements' properties?

• Common

• Unique

• Shared

• Basic

What percentage of the usual matter in the universe is composed of elements like oxygen, carbon, and iron?

• 1%

• 2%

• 5%

• 10%

Which element is in group 17?

• Chlorine

• Oxygen

• Sodium

• Magnesium

Which element is a halogen?

• Argon

• Fluorine

• Lithium

• Beryllium

Which element is a transition metal?

• Copper

• Carbon

• Helium

• Neon

What was the primary composition of matter immediately after the Big Bang?

• Hydrogen, deuterium, helium, and lithium

• Oxygen and carbon

• Nitrogen and sulfur

• Iron and nickel

What is the primary element formed after the Big Bang?

• Hydrogen

• Oxygen

• Carbon

• Nitrogen

What is the process called when stars explode and spread elements?

• Black hole formation

• Supernova

• Star implosion

• Cosmic expansion

What is the isotope of hydrogen with one proton and no neutrons called?

• Deuterium

• Tritium

• Protium

• Helium

Which isotope of hydrogen is represented by the symbol ³H?

• Protium

• Deuterium

• Tritium

• Helium