Question

Naturally occurring elements are 1.82 2.94 3.99 4.above 100 by now A particle may be 1.an atom 2.a molecule 3.an isotope 4.all of these Which of the following is an element? 1.Water 2.steam 3.snow 4.iron

Answer 1

Explanation:

1) 1.82

2)all of these

3)iron