Question

Science
Matter Around Us
Fill in the blanks

1.The smallest particle of matter that can exist by it self------
2.Ozone is a substance that is made up of--------- oxygen atoms chemically combined.
3. A molecule which contains only one atom is called-------
4.---------percentage of the atoms in the universe are hydrogen atoms.
Question and answer
1. Define molecule .
2.what is atom?
Pls answer the question immediately pls ​

Answer 1

Answer:

there is very much question

sorry

Answer 2

1. Atom
2. 3
3. Sorry I don’t have a answer
4. 74%


Question/ Answer

1. a group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction.
2. the smallest particle of a chemical element that can exist.