Breakfast COOPER

3. the structure in a cell that contains the chromosomes.
4. subatomic particle occurring in all atomic nuclei, with a positive electric charge equal in magnitude to that of an electron, but of opposite sign.
6. First element on the periodic table
7. the average mass of the atoms of an element measured in atomic mass unit
9. subatomic particle with a charge of negative electricity, found in all atoms and acting as the primary carrier of electricity in solids.
10. an atom or molecule with a net electric charge due to the loss or gain of one or more electrons.
12. a table of the chemical elements arranged in order of atomic number
14. any of the more than 100 known substances that can't be broken down more.
17. Atoms with the same number of protons but different numbers of neutrons
18. sixth element on the periodic table
19. sixteenth element on the periodic table

1. a untruly charge particle that has a mass nearly equal to that of the proton and is found in the nucleus
2. fifth element on the periodic table
5. eighth element on the periodic table.
7. the number of protons in the nucleus of an atom, which determines the chemical properties of an element and its place in the periodic table.
8. the smallest component of an element having the chemical properties of the element
11. tenth element on the periodic table.
13. Second element on the periodic table
15. twenty-sixth element on the periodic table
16. the number of a chemical element in the periodic system, whereby the elements are arranged in order of increasing number of protons in the nucleus.