Across
- 2. A vertical column in the periodic table; elements here share similar chemical properties.
- 3. in the outermost energy level of an atom that are involved in chemical bonding.
- 8. The fixed amount of energy an electron can have, often visualized as rings or shells around the nucleus.
- 10. An atom that has lost electrons, resulting in a positive charge.
- 11. The substance(s) formed as a result of a chemical reaction, written on the right side of the equation.
- 13. The standard SI unit for measuring the amount of a substance (6.022×10^23 particles).
- 15. A mathematical method of writing very large or very small numbers using powers of 10.
- 16. The amount of matter in an object, typically measured in grams or kilograms.
- 18. A positively charged subatomic particle located inside the nucleus.
- 19. A fast, exothermic reaction between a fuel and oxygen, typically producing carbon dioxide and water.
- 21. The substance that is completely consumed in a reaction and determines the amount of product formed.
- 23. The dense, positively charged central core of an atom containing protons and neutrons.
- 27. The starting substances in a chemical reaction, written on the left side of the equation.
- 28. A chemical bond formed by the electrostatic attraction between oppositely charged ions.
- 30. A negatively charged subatomic particle found outside the atomic nucleus.
- 32. The modern temperature scale used in chemistry where there can never be a negative temperature.
- 33. The measure of the average kinetic energy of the particles in a sample of matter.
- 34. The reactant that remains after a chemical reaction has gone to completion.
Down
- 1. maximum amount of product that can be produced from a given amount of reactant, based on stoichiometric calculations.
- 4. A charged entity composed of two or more atoms covalently bonded together that act as a single unit.
- 5. The force exerted per unit area by gas particles colliding with the walls of a container.
- 6. The amount of space an object or substance occupies.
- 7. The actual yield divided by the theoretical yield, multiplied by 100%.
- 9. The mass of one mole of a pure substance, usually expressed in grams per mole (g/mol).
- 12. A diagram showing an atom's valence electrons represented as dots around the element's chemical symbol.
- 14. An atom that has gained electrons, resulting in a negative charge.
- 17. A chemical bond formed when two atoms share electrons.
- 20. Digits in a measurement that contribute to its precision, including all certain digits plus one estimated digit.
- 22. The concentration of a solution expressed as the number of moles of solute per liter of solution.
- 24. A subatomic particle with no charge, located inside the atomic nucleus.
- 25. A horizontal row in the periodic table.
- 26. A three-dimensional region around the nucleus where there is a high probability of finding an electron.
- 29. The ratio of the mass of a substance to its volume (D=m/V).
- 31. The tendency of atoms to prefer to have eight electrons in their valence shell to achieve stability.