#1
What is the atomic number of oxygen?
#2
Which element has the chemical symbol 'Fe'?
#3
What is the lightest element?
#4
Which element is a halogen?
#5
What is the symbol for the element potassium?
#6
What is the chemical symbol for gold?
#7
What is the chemical symbol for lead?
#8
Who developed the periodic table?
#9
Which group of elements is known as the 'Noble Gases'?
#10
Which element has the highest melting point?
#11
Which element is essential for human bones?
#12
Which element is commonly used in batteries?
#13
Which element is the main constituent of diamonds?
#14
Which element is known as the 'universal solvent'?
#15
What is the most electronegative element?
#16
Which element has the highest electronegativity?
#17
Who discovered the noble gases?
#18