Periodic table

Atomic numbers

100

What is the atomic number for Hyrdogen

1

     H

hyrdrogen

1.008

1

200

What is the atomic number for Helium.

A. 2

B.4

C.3

A.2

300

What is the Atomic number for Sodium?

A.6

B.12

C.11

D.7

C.11

400

What is the atomic number of Thorium?

A.110

B.80

C.68

D.90

D.90

What is the symbol mean

100

What does NE mean?

A. Neon

B. Gold

A. Neon

200

What does Fe mean?

A. Fein

B. Iron

C. Sodium

B. Iron

300

What does Kr mean?

A. Cobalt

B. Krypton

C. Copper

D. Silicon

B. Krypton

400

What does Ag mean?

A. Sliver

B. Gold

C. Uramium

D. Yurium

A. Silver