Podcast
Questions and Answers
Which element is the lightest among the first 30 elements of the periodic table?
Which element is the lightest among the first 30 elements of the periodic table?
- Hydrogen (correct)
- Lithium
- Helium
- Beryllium
Which element is the most abundant in the Earth's crust among the first 30 elements of the periodic table?
Which element is the most abundant in the Earth's crust among the first 30 elements of the periodic table?
- Silicon
- Aluminum
- Iron
- Oxygen (correct)
Which element is a noble gas among the first 30 elements of the periodic table?
Which element is a noble gas among the first 30 elements of the periodic table?
- Potassium
- Phosphorus
- Sulfur
- Neon (correct)
Flashcards
Hydrogen
Hydrogen
The lightest element in the first 30 elements. It has only one proton.
Oxygen
Oxygen
The most abundant element in the Earth's crust. Essential for respiration and combustion.
Neon
Neon
A noble gas among the first 30 elements, known for its inertness and use in lighting.
