Question

What are the first 20 elements ??​

Answer 1

Answer:

These are the first 20 elements, listed in order:

H - HydrogenHe - HeliumLi - LithiumBe - BerylliumB - BoronC - CarbonN - NitrogenO - OxygenF - FluorineNe - NeonNa - SodiumMg - MagnesiumAl - AluminumSi - SiliconP - PhosphorusS - SulfurCl - ChlorineAr - ArgonK - PotassiumCa - Calcium

Explanation:

Pls mark as brainliest

Answer 2

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