Atom vocab

4. subatomic particle in the nucleus with no charge
7. subatomic particle outside the nucleus with a charge of 1
9. cloud area around the nucleus where electrons are most likely to be found
10. pure substances made of up two or more elements that combine in fixed ratios, can be chemically broken down
14. subatomic particle in the nucleus with a charge of +1
15. atoms of the same element with different numbers of neutrons
16. a stale isotope of hydrogen with a mass number of 2
17. positively charged center of an atom containing protons and neutrons
20. horizontal rows of the periodic table

1. of an atom the number of protons minus the number of electrons, should be neutral
2. ion with a positive charge
3. energy amount of energy required to remove an electron from an atom
5. pure substance whose atoms all have the same number of protons
6. table an organized list of the chemical elements arranged by increasing atomic number and chemical and physical properties
8. radius half the distance between two identical bonded atoms
11. number sum of number of protons and neutrons in an atom
12. ion with negative charge
13. in the periodic table vertical columns of periodic table
18. atom's tendency to attract electrons to attract bonding electrons
19. spectroscopy analytical technique used to measure masstocharge ratio of ions