More about Matter

3. theory, The body of theory which explains the the physical properties of matter.
5. A stable subatomic particle found in all atoms.
7. A set of elements occupying a column in the periodic table.
8. A substance that cannot be broken down into any other substance.
9. Tiny things matter is made up of.
11. The property of matter and radiation which is manifest as a capacity to perform work .
12. A stable subatomic particle occurring in all atomic nucleus.
13. ,Anything that has mass and takes up space.
15. An element or substance that is not a metal.
18. Smallest unit of ordinary matter that forms chemical element.
20. A metal made by combining two or more metallic elements.
21. metal, They are very reactive metals forming strongly alkaline hydroxides.
23. A group of atoms bonded together.
24. A thing that is composed of two or more separate elements.
25. An element whose properties are either metals and solid non-metals or semiconductors.
29. A chemical notation of one or two letters representing a chemical element.

1. A set of elements occupying a horizontal row in the periodic table.
2. Tiny particle found in the center of the atom along with the proton.
4. The singular of nuclei.
6. The amount of a substance in a defined space.
10. number, Another name for atomic number.
14. table, A tab arranged by increasing atomic number.
16. , Reactive non-metallic elements that form strongly acidic compound.
17. The movement of a solvent.
19. number, The total number of protons and neutrons in a nucleus.
22. earth, Any of the elements occupying Group IIA (2) of the periodic table.
25. A solid material which is typically hard and shiny.
26. number, The number of protons in the nucleus of an atom.
27. The act of spreading or allowing to spread freely.
28. atomic, Smaller than or occurring within an atom.