1. Well we know what the mass number for hydrogen is.

2. Such current disturbs the zero out-put basic line of the light mass number region, so that it's very difficult to measure and record the height of spectrum peaks of the light mass number region.

3. Notes on the properties of Copernicium: Atomic Mass: Atomic mass number given for longest lived isotope

4. Chemical element is the general term for the same type of atoms with the same mass number.

5. Search the site to find in-depth information for the mass number of animals present all over the world.

6. "Transferring sample under tranquil state by different intervals" we established can avoid fractionation of isotopes which have different mass number .

7. Particularly, Characteristically, remarkably, uniquely: distinctively (Physics) type of atom that is specifically identifiable (by its energy content, mass number, or atomic number), uniquely identifiable atomic nucleus: nuclide

8. Carbon 14 definition is - a heavy radioactive isotope of carbon of mass number 14 used especially in tracer studies and in dating old materials (such as archaeological and geologic specimens).

9. For the mass number of web pages needed to be crawled, how the information crawling system gets more web pages with good quality effectively, is related to the system performance.

10. Optical wave guides made of quartz glass with reduced infrared absorption and reduced attenuation coefficients are made of a glass which consists of atoms with a mass-number higher than that of the natural isotope ratio.

11. On 10 February 2011, the ex-president of Egypt, Hosni Mubarak, promised the deletion of the relevant constitutional article that gives legitimacy to State of Emergency in an attempt to please the mass number of protesters that demanded him to resign.