Across
- 4. usually liquid or gas at room temp.
- 5. The maximum number of __________ in the second energy level of an atom is 4.
- 8. variable the measurable outcome of the experiment
- 10. centimeters example of a derived unit of volume
- 13. the process of changing one element to another through nuclear decay.
- 16. Moving from left to right in a row of the periodic table, metallic properties _____.
- 17. Usually solid at room temperature
- 18. In SI units, temperature is measured on the ________ scale. Here, 0 degrees is the coldest possible temperature, absolute zero.
- 21. These are negatively charged within an atom
- 23. The nucleus of an atom has a __________ charge
- 25. number The ___________ of an element is a number that tells how many protons it has.
Down
- 1. variable plotted on the horizontal, or x-axis
- 2. Arranged in a staircase design on the periodic table.
- 3. chamber detects radiation by means of a supercooled gas.
- 6. The vast majority of an atom’s mass is located in the
- 7. Metals are good _________ of heat and electricity.
- 9. factor a ratio that is equal to one and is used to change one unit to another.
- 11. chamber detects radiation by means of a supeheated liquid.
- 12. These have a charge of either +2/3 or -1/3
- 14. These subatomic particles have no charge at all, only mass.
- 15. when what the scientist expects changes how the results are viewed
- 19. an experiment where information is purposely concealed from the test subject is called a ______ experiment
- 20. One ________ and one electron are added to each element as you go across the periodic table.
- 22. mass the amount of material required so that each fission reaction produces approximately one more fission reaction.
- 24. SI unit of mass
- 26. a measurement of the quantity of matter in an object. (and also the property of it having gravitational attraction).