Question

write down the elements of 1 to 20​

Answer 1

Answer:

$\huge\underline\green{\mathcal Answer :-}$

These are the first 20 elements, listed in order:

H - Hydrogen

He - Helium

Li - Lithium

Be - Beryllium

B - Boron

C - Carbon

N - Nitrogen

O - Oxygen

F - Fluorine

Ne - Neon

Na - Sodium

Mg - Magnesium

Al - Aluminum

Si - Silicon

P - Phosphorus

S - Sulfur

Cl - Chlorine

Ar - Argon

K - Potassium

Ca - Calcium

Answer 2

Answer:

The first 20 elements of periodic table are:

Hydrogen (H)

Helium (He)

Lithium (Li)

Beryllium (Be)

Boron (B)

Carbon (C)

Nitrogen (N)

Oxygen (O)

flourine

neon

phosphorus

sodium

magnesium

alumunium