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  1. 3. a negatively charged ion
  2. 7. a stable subatomic particle with a charge of negative electricity, found in all atoms and acting as the primary carrier of electricity in solids.
  3. 15. a chemical element is a measure of the size of its atom
  4. 17. a collection of particles called protons, which are positively charged, and neutrons, which are electrically neutral
  5. 18. a stable subatomic particle occurring in all atomic nuclei, with a positive electric charge equal in magnitude to that of an electron, but of opposite sign.
  6. 19. consists of the mutual sharing of one or more pairs of electrons between two atoms
  7. 21. the number of protons in the nucleus of an atom, which determines the chemical properties of an element and its place in the periodic table.
  8. 22. the direction of the movement of the body or the object
  9. 23. type of linkage formed from the electrostatic attraction between oppositely charged ions in a chemical compound
  10. 25. acceleration definition - Google Search
  11. 26. force that holds atoms together in a metallic substance
  12. 27. an atom or molecule with a net electric charge due to the loss or gain of one or more electrons.
  13. 28. the distance from the nucleus of an ion up to which it has an influence on its electron cloud
  14. 29. a chemical element that forms a salt when it reacts with metal
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  1. 1. the force exerted on the mass of a body by a gravitational field.
  2. 2. a connection between two surfaces or objects that have been joined together, especially by means of an adhesive substance, heat, or pressure.
  3. 4. the electrons in the outermost shell, or energy level, of an atom
  4. 5. organizes all discovered chemical elements
  5. 6. A covalent bond in which the electron density is unevenly shared between the two bonded atoms
  6. 8. a positively charged ion
  7. 9. a measure of an atom's ability to attract shared electrons to itself
  8. 10. a dimensionless quantity representing the amount of matter in a particle or object.
  9. 11. a group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction.
  10. 12. members of a family of an element that all have the same number of protons but different numbers of neutrons.
  11. 13. strength or energy as an attribute of physical action or movement.
  12. 14. a subatomic particle of about the same mass as a proton but without an electric charge
  13. 16. a particle of matter that uniquely defines a chemical element
  14. 20. the mass of an atom of a chemical element expressed in atomic mass units
  15. 24. a part or aspect of something abstract, especially one that is essential or characteristic.
  16. 26. the quantity of motion of a moving body, measured as a product of its mass and velocity.