Which element is represented by the symbol 'O' on the periodic table?

What is the atomic number of Carbon?

Which of the following elements is a noble gas?

What is the most abundant element in the universe?

Which group of elements on the periodic table is known for being highly reactive and forming strongly basic hydroxides?

Which element has the highest electronegativity value on the periodic table?

Which of the following elements is a transition metal?

What is the primary characteristic of metalloids?

Which element in the periodic table has the chemical symbol 'Na'?

Which of the following elements is a halogen?