Table of Contents
What atomic number has a mass number of 15?
The Elements, sorted by Atomic Number
| Atomic Number | Symbol | Atomic Mass (amu, g/mol) |
|---|---|---|
| 12 | Mg | 24.305 |
| 13 | Al | 26.98154 |
| 14 | Si | 28.0855 |
| 15 | P | 30.97376 |
How do you find the mass of nitrogen-15?
1 Answer
- x=% of nitrogen-15. (1−x)=% of nitrogen-14. 100%=14.0067 , the atomic mass of nitrogen.
- 0.9979x+14.00031=14.0067. Subtract 14.00031 from both sides. 0.9979x=14.0067−14.00031.
- 0.9979x=0.00639. Divide both sides by 0.9979 . x=0.006403×100=0.6403%nitrogen-15.
- 1−0.006403=0.993597. 0.993597×100=99.3597%nitrogen-14.
What is the atomic mass for nitrogen?
14.0067 u
Nitrogen/Atomic mass
What does the 15 in nitrogen-15 represent?
Nitrogen-15 meaning (physics) A minor stable isotope of nitrogen, 157N, having seven protons and eight neutrons; it accounts for less than 0.4% of the natural element; it is used in nuclear magnetic resonance spectroscopy.
How is nitrogen-15 used?
Nitrogen-15, a stable isotope of nitrogen and an essential plant nutrient, is used to determine the fertilizer use efficiency of crops. Nitrogen-15 is also used to assess integrated soil-water management practices to optimize crop productivity. It can be applied to various vital crops including rice and sugar cane.
Which element is atomic number 15?
Phosphorus
Phosphorus – Element information, properties and uses | Periodic Table.
Which element has 15 number of protons?
phosphorus
Atomic number of phosphorus = 15. So phosphorus has 15 protons and 15 electrons.
What is the average atomic mass of nitrogen-14 and 15?
Atomic mass : The atomic mass for nitrogen-14 is 14.0067 amu. Therefore, the mass for nitrogen-15 is 14.928 amu.
How can the atomic number of nitrogen be determined?
In order to determine the atomic number of nitrogen, we should know about the number of protons or electrons of the atom. Atomic number is denoted by Z. Z= number of protons. Hence, nitrogen consists of seven protons as well as seven electrons. Therefore, its atomic number (Z) will also be 7.
What is the relative atomic mass of nitrogen?
Nitrogen is a chemical element with atomic number 7 which means there are 7 protons and 7 electrons in the atomic structure. The chemical symbol for Nitrogen is N. Atomic mass of Nitrogen is 14.0067 u.
How do you calculate atomic number?
Calculating Atomic Mass for an Individual Atom Find the atomic number of the element or isotope. The atomic number is the number of protons in an element, and never varies. Find the number of neutrons in the nucleus. The number of neutrons can vary among atoms of a certain element. Add the proton and neutron count.
What does atomic number mass number and isotope mean?
One is the average weight of an element and the other is the total number of nucleons in the atom’s nucleus. Atomic mass is also known as atomic weight. Atomic mass is the weighted average mass of an atom of an element based on the relative natural abundance of that element’s isotopes.