Question

By the way...... what do those symbols for the elements have in common (for number 7-11): Pb, Au, Cu, Hg, Na ? *

Answer 1

those have symbols for their Latin or Greek name

Step-by-step explanation:

hope it helps

Answer 2

Na number of 11

Step-by-step explanation:

Pb no. 82

Au no. 79

Cu no. 29

Hg no. 80