Science Assignment

2. a collection of elements found on the left-hand side of the periodic table; they are malleable, lustrous, ductile and highly conducting
3. the father of the periodic table
5. the group of elements found in group 17 of the periodic table
7. the elements found in groups 3–12 of the periodic table
9. a collection of gaseous elements found in group 18 of the periodic table
11. famous female scientist
14. a molecule that consists of two atoms
16. a small collection of elements that have a mixture of characteristics of metals and non-metals
17. the outermost electron shell in an atom that contains electrons
18. a vertical list of elements found in the periodic table that have characteristics in common
22. the number of protons of an atom
24. a negatively charged ion
25. a collection of elements that are found on the right-hand side of the periodic table
26. the manipulation of individual atoms to form structures
28. the arrangement of electrons in each electron shell surrounding an atom
30. a bond that forms between a negatively charged anion and a positively charged cation

1. a charged ion that consists of two or more atoms bonded together
3. an electron in a molecule that can easily move between atoms
4. An element we breath
6. max number of electron in second and consecutive shells
8. a pure substance made up of one type of atom
10. an atom found in group 1 of the periodictable something used to keep track of all the elements
12. a diagram that shows the arrangement of electrons and electron shells in an atom
13. molecule a molecule that consists of two atoms
15. a molecule that is formed through covalent bonding
19. the arrangement of elements into a table according to their chemical elements
20. a horizontal list of elements found in the periodic table
21. a bond formed when two or more atoms share electrons
23. a positively charged ion
27. an atom that has gained or lost electrons, resulting in a negative or positive charge
29. Max in the first shell