In the nuclide symbol of an atom _____ number is written as subscript.
Answers
Answer:
Every nuclide has a chemical element symbol (E) in addition to an atomic number (Z), i.e., the number of protons with inside the nucleus, and a mass number (A), i.e., the whole number of protons and neutrons within the nucleus.
Answer:
Explanation:
Uranium-238.
Explanation:
In order to find the identity of the nuclide, you need to know two things
the atomic number of the atom
the mass number of the atom
The atomic number,
Z
, is given by the number of protons present inside the nucleus, so you can say that your nuclide has an atomic number equal to
92
.
The mass number,
A
, is given by the number of protons and neutrons present inside the nucleus.
A
=
Z
+
no. of neutrons
−−−−−−−−−−−−−−−−−−−−−
In your case, the mass number of the nuclide is equal to
A
=
92
+
146
=
238
Now, isotope notation makes use of the atomic number and the mass number of the nuclide.
http://chemkjj.blogspot.ro/2015/06/c1-12-proton-number-mass-number-ions.html
http://chemkjj.blogspot.ro/2015/06/c1-12-proton-number-mass-number-ions.html
The identity of the nuclide is given by the atomic number, so grab a periodic table and look for the element that has
Z
=
92
.
This element is uranium,
U
. To write the name of the nuclide, add the mass number after the name of the element
uranium-238
Consequently, you can say that the nuclide symbol will be
238
1
92
U
→
uranium-238