Across
- 4. The smallest unit of a compound that has all of the properties of the compound.
- 5. The single capital letter or capital letter followed by a lower case letter or letters that represents the name of the element.
- 6. Family has 5 valence electrons, share electrons easily, does not readily combine with other elements
- 8. A bond formed by the transfer of electrons (when valence electrons of one atom are transferred to the outer energy level of another atom).
- 11. A neutral subatomic particle in the nucleus of an atom.
- 12. Describes how likely an element is to form bonds with other elements.
- 14. Anything that has mass and volume.
- 15. Family has 4 valence electrons, made of 1 nonmetal, 2 metalloids, 2 metals.
- 17. Elements and/or compounds that when put together are unable to react chemically.
- 18. A vertical column (up and down) on the periodic table.
- 21. An element or substance that conducts heat and electricity.
- 22. A bond formed when two atoms share valence electrons.
- 24. Family has 3 valence electrons, includes 1 nonmetal and 4 post transition metals.
- 25. An electron in the outermost energy level of an atom
- 27. Family has 2 valence electrons. Weak meta;s. Create an alkaline solution in water.
- 28. A negatively charged subatomic particle.
- 29. Family has 6 valence electrons, combines well with most elements, brittle at room temperature
- 30. Elements that are made by scientists in a laboratory and do not exist in nature. Synthetic elements are typically identified as any element with the atomic number of 93 and up.
Down
- 1. This family has 7 valence electrons, are the most reactive group, all non-metals.
- 2. An element that has some properties of a metal and some properties of a nonmetal.
- 3. Scientific law that states that during a chemical reaction, matter cannot be created or destroyed but can be changed into a different form.
- 7. An element that does not conduct electricity or heat and is usually a gas at room temperature.
- 9. A horizontal row (left to right) in the periodic table.
- 10. A positively charged subatomic particle.
- 13. An atom that has gained or lost one or more electrons.
- 16. A chart that organizes information about all of the known elements according to their properties.
- 19. The number of protons and neutrons in the nucleus of one atom of the element. Located under the elemental symbol (at the bottom of the element box on the periodic table).
- 20. Family has 1 valence electron, soft,shiny metals, most reactive metals.
- 23. This family includes group #'s 3-12,can change valence electrons from 1-3, shiny hard metals, share electrons easily.
- 26. The region surrounding the nucleus of an atom where the electrons are located.
- 29. A region in an atom where there is a high probability of finding electrons.