0
antimony
Wiki User
∙ 13y ago
Add your answer:
Earn +20 pts
What is the isotope iodine 75?
There is no such isotope (75) known. Iodine (atom number 53, average atomic mass 127) has 53 protons and 70 up till 82 neutrons. The lowest known isotope number therefor is 123.
How many neutrons are in the nucleus of an atom of 118 50 Sn?
Sn (tin) has an atomic number of 50, which indicates there are 50 protons in its nucleus. If the atomic mass is 118, then the number of neutrons is the difference between the two numbers, or 68 neutrons.
How many neutrons does Mercury have in it?
there are 121 neutrons in Mercury This is CORRECT. The number of protons (80) is equal to the number of electrons and it is also the atomic number. You can figure out the number of neutrons by subtracting the atomic weight by the atomic number. For example: Mercury Atomic number: 80 Atomic weight: 201 --> 201 - 80 = 121 which is the number of neutrons BTW this works with all the elements on the periodic table
Is serum glucose 123 to high?
serum glucose 123 to high?
How many protons and neutrons does tellurium-123 have?
Tellurium-123 has 52 protons and 71 neutrons.
What is the number of electrons if an isotope has an atomic number of 51 and a mass number of 123?
51: For a neutral atom, the number of electrons always is the same as the number of protons, which in turn is the atomic number. The mass number is irrelevant to this question.
What is the isotope iodine 75?
There is no such isotope (75) known. Iodine (atom number 53, average atomic mass 127) has 53 protons and 70 up till 82 neutrons. The lowest known isotope number therefor is 123.
What does 123 stand for in 123 Nuclear Agreement?
Section 123 of the US atomic energy act
The India us nuclear deal is called 123 agrement what does 123 denote?
Section 123 of US Atomic energy act
Which is not Fibonacci number 89 or 123?
123 is not a Fibonacci number.
How do you calculate percent abundance for antimony?
The atomic mass of an element is the weighted average of the masses of its isotopes. You know that: Antimony-121 has a mass of 120.9038 u, x% abundance Antimony-123 has a mass of 122.9042 u, y% abundance There are only 2 isotopes for antimony and their percent abundances should add up to 100%. In other words: x% + y% = 100% y = 1-x (percentages written as decimals) So, now let's put everything together. In order to calculate the atomic mass, multiply the percent abundance of an isotope by its atomic mass; then add the product of all the isotopes: (Atomic Mass of Antimony-121)(Percent Abundance of Antimony-121) + (Atomic Mass of Antimony-123)(Percent Abundance of Antimony-123) = Atomic Mass of Element Antimony (120.9038 amu)(x) + (122.9042 amu)(y) = 121.760 amu Replacing 1-x for y gives: (120.9038 amu)(x) + (122.9042 amu)(1-x) = 121.760 amu Solve for x: 120.9038x + 122.9042 -122.9042x = 121.760 amu -2.0040x = -1.1442 x = 0.57096 = 57.096% Solve for y: y = 1 - x y = 1 - 0.57096 = 0.42904 = 42.904%
123 is a number?
yes, 123 is a number it is the first 3 numbers
What is half of the number 246?
123
What is the smallest multiple number of 123?
123.
Why is 123 unlucky in Ireland?
123 is not an unlucky number in Ireland.
What number is divisible by 9 123 234 or 345?
123
12 3 squared equals?
123 squared means the same as 123 x 123. Squaring a number is the same as multiplying the number with itself.
