Table of Contents
- 1 What are the mass number number of electron and neutrons if platinum has mass number of 201 and 80 number of protons?
- 2 Does hydrogen have an atomic number of 79?
- 3 What element has 78 protons and 92 neutrons?
- 4 What is the atomic number for an element whose mass number is 78 and contains 48 neutrons?
- 5 What element has 79 protons in its nucleus?
- 6 What atom has 78 electrons?
What are the mass number number of electron and neutrons if platinum has mass number of 201 and 80 number of protons?
The mass number (201) is the total number of protons and neutrons. So, there must be 201 – 80 = 121 neutrons. Since atoms are electrically neutral, there must be as many electrons as there are protons.
Does hydrogen have an atomic number of 79?
For example, hydrogen has an atomic number of 1. This means that an atom of hydrogen has one proton, and, if it’s neutral, one electron as well. Gold, on the other hand, has an atomic number of 79, which means that an atom of gold has 79 protons, and, if it’s neutral, 79 electrons as well.
What is the atomic mass of an atom of gold that has 79 protons 79 electrons and 118 neutrons?
A Gold (Au) atom has 79 protons and 79 electrons. A typical gold atom has 118 neutrons, though there are 18 other radioisotopes discovered so far. 197 is its mass (atomic mass), which is the sum of its proton number and neutron number.
What element has 79 protons and a mass number of 197?
gold-
This would be called “gold-197”. It is gold (Au) since it has 79 protons (the charge number of 79) and it has 118 neutrons (197 – 79 = 118).
What element has 78 protons and 92 neutrons?
Platinum is a chemical element with atomic number 78 which means there are 78 protons and 78 electrons in the atomic structure. The chemical symbol for Platinum is Pt.
What is the atomic number for an element whose mass number is 78 and contains 48 neutrons?
Platinum
#78 – Platinum – Pt.
What has an atomic mass of 79?
The Elements, sorted by Atomic Number
| Atomic Number | Symbol | Atomic Mass (amu, g/mol) |
|---|---|---|
| 76 | Os | 190.2 |
| 77 | Ir | 192.22 |
| 78 | Pt | 195.09 |
| 79 | Au | 196.9665 |
How many electrons would an atom have if the atomic number is 79?
79 electrons
If Z = 79 , there are 79 positively charged nuclear particles, 79 protons, in the nucleus. If 79 nuclear charges, the NEUTRAL atom contains 79 electrons. You specified an ion, and gold forms both Au+ and Au3+ ions so 78 and 76 electrons respectively.
What element has 79 protons in its nucleus?
Gold
Gold is the 79th element in the periodic table. it has 79 protons in its nucleus and 79 outter electrons.
What atom has 78 electrons?
Platinum Atomic and Orbital Properties Platinum atoms have 78 electrons and the electronic shell structure is [2, 8, 18, 32, 17, 1] with Atomic Term Symbol (Quantum Numbers) 3D3.