Across
- 2. electron is a negatively charged subatomic particle.It can be either free (not attached to any atom),or bound to the nucleus of an atom.
- 4. nucleus is a membrane-bound organelle that contains the cell's chromosomes.
- 8. is the study of substances that is, elements and compounds while biology is the study of living things.
- 10. part or aspect of something abstract, especially one that is essential or characteristic.
Down
- 1. proton is an elementary positively charged particle of an atom. Protons are the lightest and most stable component of an atom.
- 3. thing that is composed of two or more separate elements; a mixture.
- 5. gentle sheen or soft glow,especially that of a partly reflective surface.
- 6. subatomic particle of about the same mass as a proton but without an electric charge,present in all atomic nuclei except those of ordinary hydrogen.
- 7. atom is the basic building block of chemistry. It is the smallest unit into which matter can be divided without the release of electrically charged particles.
- 9. is everything around you.Matter is defined as anything that has mass and takes up space