Question

can someone help, please ??
Chemistry

13. The periodic table was developed based upon the work of which scientist?
A. Dalton
B. Newton
C. Moseley
D. Mendeleev

14. The names of the compounds FeS, NaCl, NaOH, and Pb(CN)2
all end in the suffix
A. -ite.
B. -ide.
C. -ic.
D. -ate.

Answer 1

Number 13 is D. Mendeleev. He was a Russian chemist and inventor who formulated the periodic table.

Answer 2

13. The periodic table was discovered by Dalton.
14.NaCl is sodium chloride