#1
Which element has the chemical symbol 'Na'?
1 answered
#2
What is the atomic number of oxygen?
#3
What is the chemical symbol for gold?
#4
What is the atomic number of carbon?
#5
What is the chemical symbol for potassium?
#6
What is the atomic number of iron?
#7
Which group of elements are known as the 'noble gases'?
#8
What is the most abundant element in the Earth's crust?
#9
Which element has the lowest melting point?
#10
Who is credited with the discovery of the periodic law?
#11
Which element is commonly used in batteries?
#12
Which element is a halogen?
#13
Which element has the highest atomic mass?
#14
Which element has the highest electronegativity?
#15
Which element has the highest boiling point?
#16