141,421 views
15 votes
15 votes
Need help please i need an answer ​

Need help please i need an answer ​-example-1
User Andrew Patterson
by
2.8k points

1 Answer

20 votes
20 votes

Answer: the smallest particle of an element is called an atom.

Compounds can be broken down to simpler substance through the process called Chemical Reaction, I think.

In the universe, _______ makes up 75% of all matter, _______ makes up abut 20% and ________ being the 3rd (5%) most abundant element.

Answer is

In the universe (hydrogen) makes up 75%

and (Helium) makes up about 20%

and (oxygen) being the 3rd makes up (5%)

Step-by-step explanation: Hope this helped :)

User Avinav Mishra
by
2.6k points