Across
- 2. /A subatomic particle of about the same mass as a proton but without an electric charge.
- 5. solid at room temperature,
- 6. /A stable subatomic particle with a charge of negative electricity, found in all atoms and acting as the primary carrier of electricity in solids.
- 8. /Has characteristics of both metals and nonmetals
- 11. /A positively charged ion
- 12. /an element that is typically
- 13. /Substance formed when two or more elements in which the exact combination and proportion of elements is always the same
- 15. /A stable, positive charged, and subatomic particle that occurs in all atomic nuclei
- 16. /A negatively charged ion
- 17. /When atoms come together in a compound to create many things we need in everyday life
- 19. /A set of elements occupying an entire horizontal row in the periodic table
- 20. /a state of matter
- 22. /A set of elements occupying an entire vertical column in the periodic table
- 25. /A general direction in which something is developing or changing
- 27. /The elements in the middle of the periodic table
- 29. /an atom or molecule with a net electric charge due to the loss or gain of one or more electrons
- 30. /The total number of protons and neutrons in a nucleus
- 32. /The number of protons in the nucleus of an atom, which determines the chemical properties of an element
- 33. a good conductor of heat and
- 34. /Attraction formed between atoms when they share electrons
- 35. /The 18 groups of elements in a periodic table
- 36. /The basic unit of a chemical element.
- 37. /Attraction formed between oppositely charged ions in an ionic compound
Down
- 1. /Chemical shorthand that uses symbols to tell what elements are in compound and their ratios
- 3. /The positively charged central core of an atom, consisting of protons and neutrons and containing nearly all its mass.
- 4. /A compound that is composed of two elements
- 7. /The arrangement of electrons in energy levels around an atomic nucleus
- 9. /A cloud around the nucleus that shows where electrons areion
- 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
- 14. /A neutral particle that forms as a result of electron sharing
- 18. /Is an outer shell electron that is associated with an atom
- 21. /The organized array of all the chemical elements in order of increasing atomic number
- 23. /An atom that has more protons than electrons
- 24. /A compound composed of two elements. One of the elements is metal and the other is non-metal
- 26. /an element that is typically dull in appearance and is a poor conductor of heat and electricity many nonmetals are gases at room temperature, but some are solids
- 28. /An atom that has more electrons than protons. It is also called a anion
- 31. /A letter or symbol to represent something else like a numeral
- 36. /The mass of an atom of a chemical element expressed in atomic mass units