I need short definitions for these words be 4 2morrow.

proton-
neutron-
electron-
nucleus-
atom-
periodic table-
atomic number-

Go to www.dictionary.com. They have all of these words listed.

Example how to find answers using Google:

Word Proton
http://www.google.com/search?as_q=proton&num=10&hl=en&btnG=Google+Search&as_epq=&as_oq=&as_eq=&lr=&as_ft=i&as_filetype=&as_qdr=all&as_nlo=&as_nhi=&as_occt=any&as_dt=i&as_sitesearch=&as_rights=&safe=images

Now you do the rest

Definition of Concentrate

independent variable

To find the definitions for the rest of the words, follow the same process used for the word "proton" using a search engine like Google or an online dictionary like www.dictionary.com.

For "neutron":
- Use a search engine or go to a dictionary website.
- Search for "neutron definition" or simply "neutron".
- Click on the relevant search results or dictionary entries to find the definition.

For "electron":
- Repeat the same process as above, searching for "electron definition" or simply "electron".

For "nucleus":
- Once again, use a search engine or dictionary website.
- Search for "nucleus definition" or simply "nucleus", and click on the relevant results or dictionary entries.

For "atom":
- Follow the same process as above, searching for "atom definition" or simply "atom".

For "periodic table":
- Search for "periodic table definition" or simply "periodic table" to find the definition.

For "atomic number":
- Use a search engine or dictionary website.
- Search for "atomic number definition" or simply "atomic number", and click on the relevant results or dictionary entries.

Remember to click on reliable sources such as reputable dictionaries or educational websites to ensure accurate definitions.