Across
- 6. the sticking together of particles of the same substance
- 10. the sharing of electron pairs between atoms.
- 11. an atom or group of atoms that carries a positive or negative electric
- 12. a group of atoms bonded together
Down
- 1. the tendency of dissimilar particles or surfaces to cling to one another.
- 2. a chemical substance composed of many identical molecules composed of atoms from more than one element held together by chemical bonds.
- 3. has a negative charge of electricity
- 4. Bond interaction involving a hydrogen atom located between a pair of other atoms having a high affinity for electrons
- 5. are two or more types of atoms that have the same atomic number and position in the periodic table
- 7. the electrostatic attraction between oppositely charged ions
- 8. dense region consisting of protons and neutrons
- 9. a pure substance