Across
- 1. a measure of the amount of matter in body
- 4. a measure of the pull of the gravity of the earth
- 9. shape; d-orbital
- 10. located on the right side ofbthe periodic table; acid-formers
- 11. composed of two or more elements
- 15. refers to the arrangement of the electrons in the different orbitals of the atom in the free state
- 16. / smallest estimated digit taken from the scale
- 17. a measure of warmth and coldness of an object or substance with reference to some standard value
- 20. / smallest exact digit taken from the scale
- 22. amount of Electron required to remove from a neutral atom
- 24. changes involve in chamical formation of substance
- 27. figures / refers to the number of exact digit with one digit is estimated
- 28. positively charged ion
- 29. behaves as wave
- 30. combination of 2 or more base unit
Down
- 2. shape; s-orbital
- 3. good conductors of heat and electricity; base-formers
- 5. seperation of the components via chemical means
- 6. / any number added to uncertain digit
- 7. simplest base unit
- 8. classify the elements based on increasing atomic number
- 12. modern form of metric system
- 13. refers to the mass of a substance per unit volume
- 14. building blocks of nucleun
- 16. a positively charged particle
- 18. composed of more than one component
- 19. reffering to the number of electrons
- 21. / is a process of comparing something with a standard device
- 23. the smallest component of an element having chemical properties of the element
- 25. system / is an internationally agreed decimal system of measurement
- 26. border line elements; behave as acids