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Chemical numbers

Let's see how good you are :)))) 8 Questions.

 
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GrEeNEyEd
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1

Who created the periodiс table of the chemical elements?

  • Dmitri Mendeleev
  • Pnimo Levi
  • Antoine Lavoisier

2

Which chemical element has the atomic number 12 in the periodiс table?

  • Magnesium
  • Ruthenium
  • Gallium

3

Which one is the lightest element ?

  • Sodium
  • Hydrogen
  • Lithium

4

Sodium is a metalic element with what symbol?

  • So
  • Sd
  • Na

5

Potassium is a chemical element with what symbol?

  • P
  • K
  • Pt

6

Calcium is the element with symbol Ca and atomic number.... ?

  • 10
  • 20
  • 30

7

How many chemical element are there in the periodiс table?

  • 110
  • 115
  • 118

8

How many chemicals from the periodic table are naturally found on Earth?

  • 94
  • 100
  • 49

 

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