20 elements number of possible orders
Answers
Answered by
2
Answer:
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 Aluminium Al
14 Silicon Si
15 Phosphorus P
16 Sulfur S
17 Chlorine Cl
18 Argon Ar
19 Potassium K
20 Calcium
Answered by
0
Answer:
elements
⇒ 5×4 and 4×5→10×2,2×10, 20×1, 81×20
Similar questions