What element has 79 protons 79 electrons and 118 neutrons?
What element has 79 protons 79 electrons and 118 neutrons?
1 Answer. 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.
What isotope has 79 protons and 117 neutrons?
List of isotopes
Nuclide | Z | N |
---|---|---|
Excitation energy | ||
195Au | 79 | 116 |
195mAu | 318.58(4) keV | |
196Au | 79 | 117 |
What is the atomic mass of gold if it has 79 protons and 118 neutrons?
Explanation: Gold (Au) has an atomic number of 79, meaning that it has 79 protons. The Relative Atomic Mass of gold is 197. 197 – 79 = 118 neutrons.
What element has exactly 79 protons?
If Z , the atomic number, is 79 , then, immediately we know that the element is gold.
What is the isotope notation for a nucleus with 79 protons and 118 neutrons?
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).
How many protons neutrons and electrons are in a 197Au atomic number of gold is 79?
(a)The superscript 197 is the mass number 1protons + neutrons2. According to the list of elements given on the front inside cover, gold has atomic number 79. Consequently, an atom of 197Au has 79 protons, 79 electrons, and 197 – 79 = 118 neutrons.
How many protons neutrons and electrons are in an atom of a Au Z 79 A 197 B SR Z 38 a 90?
Consequently, an atom of 197Au has 79 protons, 79 electrons, and 197 – 79 = 118 neutrons. (b) The atomic number of strontium is 38. Thus, all atoms of this element have 38 protons and 38 electrons. The strontium-90 isotope has 90 – 38 = 52 neutrons.
What is the atomic number 79?
element gold
The element gold. Gold is element 79 and its symbol is Au.
What element has an atomic mass of 79?
Au
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 |
What is the atomic number of an atom that has 79 protons 78 electrons and 118 neutrons?
It is gold (Au) since it has 79 protons (the charge number of 79) and it has 118 neutrons (197 – 79 = 118).