Chlorine-the chemical element of atomic number 17, a toxic, irritant, pale green gas

atomic number-the number of protons in the nucleus of an atom, which determines the chemical properties of an element and its place in the periodic table.

6 0

3 years ago

What do u mean by Big Bang ?<br>what do u mean by Big Crunch ?

Neporo4naja [7]

Answer:

1) Somewhere it billion years ago it was considered that there were no air , no earth , no sky , no sun , not even light . The universe was a highly dense and infinitesimally small lump . Suddenly,There was a big explosion.The"Big Bang ".And then was light . That probably was the beginning____ The beginning of matter,The beginning of light and the time !!.

2) The big crunch is a hypothetical scenario for the ultimate fate of the universe.

<h2>Hope this helps u :)</h2><h2>Not cheated nor copied answer .</h2>

7 0

2 years ago

Who is Charles darwin

Sveta_85 [38]

Answer:

Charles Darwin came up with the theory of evolution.

7 0

3 years ago

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