Across
- 1. If an atom is neutral, there is _____ amount of protons and electrons
- 4. Used to tell the number of protons in a atom of the element and used to identify the element
- 6. Mass number of Mn
- 7. Columns numbered 1-18 on the Periodic Table
- 9. Is not on the periodic table and tells the number of protons and neutrons in the nucleus of an atom
- 12. These have no luster, poor conductor, not ductile, not malleable, low density, low melting point, and less reactive
- 13. Atoms of the same element with different numbers of neutrons
- 16. Is the space surrounding the nucleus, broken down into regions of space called shells, negatively charged, and where the volume of the atom is located
- 17. Table A table in which it arranges all of the known elements in order of increasing atomic number
- 18. These are solid at room temp., shiny luster, ductile, high density, high melting point, and reactivity
- 19. Neutral particle in the nucleus with protons
- 20. Abbreviation for the name of the element
- 22. The sum of the protons and neutrons
- 23. Negative particle outside of the nucleus in the electron cloud
Down
- 2. Wieghted average of all of the different versions of an element (called isotopes)
- 3. Number of neutrons of B
- 5. Number of protons of Ag
- 8. Electrons in the outermost energy level
- 10. Positive particle in the nucleus
- 11. Atomic number of Al
- 14. Something that has properties of both metals and nonmetals
- 15. Has a dense center, made of protons and neutrons, positively charged, and is where the mass of the atom is located
- 21. Rows numbered 1-7 on the Periodic Table
- 22. The smallest particle of an element that still has the properties of that element