Across
- 3. I am one of the noble gases.
- 6. Another name for a row of the periodic table.
- 7. I have definite shape and volume.
- 8. Electrons furthest from the nucleus that are responsible for interactions of atoms with one another also referred to as _________ electrons.
- 10. An atom that has gained or lost one or more electrons.
- 14. These types of elements are malleable, ductile and conduct electricity.
- 15. A combination of two or more atoms held together in a specific shape by attractive forces.
- 18. I am negatively charged and barely contribute to the mass of the atom.
- 20. My atomic number is 7.
- 22. Protons, neutrons and electrons are classified as ________ particles.
- 23. The number of _______ gives the identity of an element.
- 25. I take the shape of the container I am in.
- 26. I am a transition metal with 47 electrons used to make photographic film.
Down
- 1. My atomic mass is 63.546 amu.
- 2. You can find me in Group 1 of the periodic table and in table salt.
- 4. I am the heaviest alkaline earth metal.
- 5. I am made up of hydrogen and oxygen atoms and you need me to live.
- 7. If phosphorus gains 1 proton it turns into this element.
- 9. I am the positively charged center of an atom.
- 11. Members of Group 17 (or VIIA) are called _______.
- 12. I have no charge and you can find me at the center of an atom.
- 13. Arsenic is an example of this type of element.
- 16. Substance that contains more than one element.
- 17. I can be either heterogeneous or homogeneous.
- 19. Two forms of the same element that contain same number of protons but different number of neutrons.
- 21. Another name for a column of the periodic table.
- 24. Elemental symbol for tin.