1)nitrogen atom has atomic no 7 and mass no 14.hydrogen atom has atomic no 1 and mass no 1.what is no of protons and neutrons of ammonium ions
Atomic # = protons
Mass # = protons+neutrons
Ammonium ion is NH4^+
To determine the number of protons and neutrons in an ammonium ion, we first need to understand its chemical formula. The formula for ammonium ion is NH4+, where NH4 represents a positively charged nitrogen atom bonded to four hydrogen atoms.
1. Ammonium ion consists of one nitrogen atom (N) and four hydrogen atoms (H).
2. The atomic number of nitrogen is 7, which means it has 7 protons.
3. The atomic number of hydrogen is 1, indicating it has 1 proton.
4. To find the total number of protons in the ammonium ion, we multiply the atomic number of nitrogen by 1 and the atomic number of hydrogen by 4, then add them together. So, the total protons = (7 × 1) + (1 × 4) = 7 + 4 = 11 protons.
Now, to determine the number of neutrons:
5. The mass number of nitrogen is 14, signifying it has a total of 14 nucleons (protons + neutrons).
6. The mass number of hydrogen is 1, indicating it has a total of 1 nucleon.
7. However, since the ammonium ion NH4+ has a positive charge, it is missing one electron, making it one proton heavy.
8. Therefore, the total nucleons (protons + neutrons) in the ammonium ion can be calculated as (14 × 1) + (1 × 4) + 1 = 14 + 4 + 1 = 19 nucleons.
To find the number of neutrons, we subtract the number of protons from the total nucleons:
9. Neutrons = Total nucleons - Protons = 19 - 11 = 8 neutrons.
So, the ammonium ion (NH4+) contains 11 protons and 8 neutrons.