What are the first 20 elements of the periodic table and information about them?

Answer 1

Here they are listed by atomic number, element name and chemical symbol:

1 Hydrogen H

2 Helium He

3 Lithium Li

4 Beryllium Be

5 Boron B

6 Carbon C

7 Nitrogen N

8 Oxygen O

9 Fluorine F

10 Neon Ne

11 Sodium Na

12 Magnesium Mg

13 Aluminum Al

14 Silicon Si

15 Phosphorus P

16 Sulfur S

17 Chlorine Cl

18 Argon Ar

19 Potassium K

20 Calcium Ca

Use the link below to a list of all the chemical elements by atomic number. It's to the Wikipedia post, and each element is a hyperlink to the post on that element. Bookmark this bad boy, and the Periodic Table of elements at Wikipedia, too. The periodic table there is interactive, just like this list. And both are a boon to the study of school chemistry. Bookmark them for 30 days and try them out. You can always dump them later, but the benefits you'll derive in just one use will verify their worth. Promise.

Answer 2

The first 20 elements of the periodic table are:

1. Hydrogen - atomic number 1, symbol H
2. Helium - atomic number 2, symbol He
3. Lithium - atomic number 3, symbol Li
4. Beryllium - atomic number 4, symbol Be
5. Boron - atomic number 5, symbol B
6. Carbon - atomic number 6, symbol C
7. Nitrogen - atomic number 7, symbol N
8. Oxygen - atomic number 8, symbol O
9. Fluorine - atomic number 9, symbol F
10. Neon - atomic number 10, symbol Ne
11. Sodium - atomic number 11, symbol Na
12. Magnesium - atomic number 12, symbol Mg
13. Aluminum - atomic number 13, symbol Al
14. Silicon - atomic number 14, symbol Si
15. Phosphorus - atomic number 15, symbol P
16. Sulfur - atomic number 16, symbol S
17. Chlorine - atomic number 17, symbol Cl
18. Argon - atomic number 18, symbol Ar
19. Potassium - atomic number 19, symbol K
20. Calcium - atomic number 20, symbol Ca These elements vary in characteristics such as reactivity, physical state, and common uses in everyday life.