Across
- 1. any of the elements lithium, sodium, potassium, rubidium, cesium, and francium, occupying group IA
- 3. the total number of protons and neutrons in a nucleus
- 4. a model consisting of a positively charged nucleus with electrons revolving around it in any of many possible circular orbits each corresponding to a distinct energy state
- 9. any of the elements fluorine, chlorine, bromine, iodine, and astatine, occupying group VIIA
- 10. each of two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei.
- 13. a variable whose value depends on that of another
- 15. a property of matter that depends only on the type of matter in a sample and not on the amount. Other intensive properties include color, temperature, density, and solubility.
- 16. any of the gaseous elements helium, neon, argon, krypton, xenon, and radon, occupying group VIIIA
- 17. a theoretical framework that depicts the probability of finding electrons within specific regions of space around the nucleus, known as orbitals, rather than defining precise paths
- 18. subatomic particles found inside the nucleus of every atom.
- 20. A branch of natural science that deals principally with the properties of substances, the changes they undergo, and the natural laws that describe these changes.
- 21. the positively charged center of the atom consisting of protons and neutrons.
- 24. any of the elements beryllium, magnesium, calcium, strontium, barium, and radium, occupying group IIA
- 25. a mixture in which the composition is not uniform throughout the mixture.
- 26. a negatively charged ion, i.e. one that would be attracted to the anode in electrolysis.
Down
- 2. number of protons in a nucleus
- 5. a mixture that is a gaseous, liquid or solid mixture that has the same proportions of its components throughout a given sample.
- 6. a subatomic particle with a positive electrical charge.
- 7. substance that cannot be broken down into smaller parts or changed into another substance.
- 8. an ion, or charged particle, with a positive charge.
- 11. anything that has mass and takes up space
- 12. a property that depends on the amount of matter in a sample.
- 14. a stable subatomic particle with a charge of negative electricity, found in all atoms and acting as the primary carrier of electricity in solids.
- 19. a variable whose variation does not depend on that of another.
- 22. composed of two or more separate elements; a mixture.
- 23. an atom or molecule with a net electric charge due to the loss or gain of one or more electrons.