Chemistry

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Across
  1. 4. is a basic, ionic salt of an alkali metal or alkaline earth metal chemical element.
  2. 7. good conductor of heat and electricity
  3. 8. positively charge
  4. 11. table is a tabular arrangement of the chemical elements, organized on the basis of their atomic numbers, electron configurations and etc.
  5. 12. A measure of the rate at which a defined amount of matter
  6. 14. name the measure of one-dimensional objects
  7. 16. is the process observing and recording the observations that are collected as part of a research effort.
  8. 18. The halogens or halogen elements (/ˈhælədʒɨn/) are a group in the periodic table consisting of five chemically related elements, fluorine (F), chlorine (Cl), bromine (Br), iodine (I), and astatine
  9. 19. gravity the ratio of the density of a substance
  10. 22. are the elements found along the stair-step line that distinguishes metals from non-metals
  11. 24. number the number of protons in the nucleus of an atom of an element
  12. 27. negatively charge
  13. 29. are atoms of the same element, having same atomic number but different atomic masses due to the difference in the number of neutrons present.
Down
  1. 1. is a positively charged ion. Thus it has fewer electrons than protons. It is also attracted to the cathode in the process of electrolysis
  2. 2. the quantitative measure of inertia
  3. 3. metals comprise, at minimum, those metallic chemical elements which have historically been used as components in alloys used to mint coins.
  4. 4. The ability of a measurement to match the actual value of the quantity being measured
  5. 5. measurement is a definite magnitude of a physical quantity, defined and adopted by convention or by law, that is used as a standard for measurement
  6. 6. refering to minutes , seconds hours
  7. 9. The act or state of being changed from one unit into another
  8. 10. Close, careful conformity to a convention, pattern, or objective standard in minute detail.
  9. 13. is a measure of the thermal energy given off by moving particles
  10. 15. current (from Latin tellūs, "earth"), or Earth current, is an electric current which moves underground or through the sea
  11. 17. system is a system of measurement in a decimal form (each successive unit of measure is 10 times larger or smaller than the preceding unit). Its name is from the Greek (métron, to measure).
  12. 20. is an atom or molecule in which the total number of electrons is not equal to the total number of protons
  13. 21. basic unit of an element
  14. 23. is a way to measure how tightly packed an object is. Denser objects have less empty space in them
  15. 25. has no charge
  16. 26. the amount of space an object takes up.
  17. 28. the force that gravitation exerts upon a body