Matter
Across
- 6. a material that is typically hard, opaque, shiny, and has good electrical and thermal conductivity the measure of the ease at which an electric charge or heat can pass through a material
- 8. the movement of a solvent
- 9. a chemical element that mostly lacks the characteristics of a metal
- 13. a group of atoms bonded together
- 16. a substance formed from two or more elements chemically united in fixed proportions
- 18. ___________ particles are smaller than atoms
- 20. the body of theory which explains the physical properties of matter in terms of the motions of its constituent particles
- 21. a group in the periodic table consisting of five chemically related elements: fluorine (F), chlorine (Cl), bromine (Br), iodine (I), and astatine (At).
- 22. the basic building block of ordinary matter
- 23. an admixture of metals
- 24. the ability to do work
- 25. abbreviations used in chemistry for chemical elements
- 27. anything that has mass and takes up place (it has volume)
- 29. a stable subatomic particle with a charge of negative electricity
Down
- 1. the movement of a substance from an area of high concentration to an area of low concentration
- 2. the positively charged central core of an atom the smallest particle of an element that retains the chemical retains the chemical and physical properties of the element
- 3. tabular display of the chemical elements
- 4. ions,atoms or molecules
- 5. an element that has properties that are intermediate between those of metals and nonmetals
- 7. the number of protons in the nucleus of an atom is called
- 10. any of the six chemical elements that comprise Group 2 (IIa) of the periodic table
- 11. _________metals are the most electropositive (the least electronegative) of elements
- 12. a set of elements occupying a horizontal row in the periodic table
- 14. a subatomic structure
- 15. a set of elements occupying a column in the periodic table
- 17. the particles in an atom that has a neutral charge
- 19. each of more than one hundred substances that cannot be chemically interconverted or broken down into simpler substances and are primary constituents of matter
- 26. the sum of the numbers of protons and neutrons present in the nucleus of an atom is called
- 28. number of protons in the nucleus of an atom is called