Which of the statements about elements is true? a) the atoms of all elements have different mass, but same volumes. b) the atoms of all elements have the same mass and volume. c) scientists have identified a little less than 100 elements. d) no two elements have the same kind of atom.

Hey there!

Your answer is option D.
"No two elements have the same kind of atom." is a true statement about an element.

"
Scientists have identified a little less than 100 elements.", "
The atoms of all elements have the same mass and volume.", and "
The atoms of all elements have different mass, but same volumes."
These are all false statements about elements.

Final
Option D.

Hope this helps you.
Have a great day!