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Is the atomic mass of an element the average mass of the element calculated by addition of the masses all isotopes and division of the sum obtained to the number of isotopes?
Wiki User
∙ 11y ago
For chemical elements the correct words are atomic weight; for isotopes the correct words are atomic mass.
The atomic weight is calculated taking into account the atomic masses of the natural isotopes, for a given element, and the percentage of these elements.
The formula is:
atomic weight = massa x fracta + massb x fractb + .... + massn + fractn
Fract is the fraction of the isotope.
Wiki User
∙ 11y ago
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What is the Product obtained by division?
The product obtained by division is the Quotient
When uranium radiate alpha particles what element is produced?
Thorium isotopes are obtained.
What is given off by radioactive elements such as radium and Plutonium?
From these isotopes decay products are obtained and also ionizing radiations.
Why can scientists make technetium synthetically but not gold?
You might get gold but these obtained isotopes are radioactive and unstable; so it is useless.
Can radium be manufactured artificially?
Radium is a natural chemical element, an alkali earth metal; but some isotopes of radium can be obtained artificially.
What is the Product obtained by division?
The product obtained by division is the Quotient
What are algebreic expressions?
? An expression which is obtained by performing a finite number of the following operations on symbols representing numbers: addition, subtraction, multiplication, division, raising to a power.
What will happen to a neptunium atom over time?
The fate of all radioactive and unstable isotopes is the disintegration until to stable isotopes are obtained.
When uranium radiate alpha particles what element is produced?
Thorium isotopes are obtained.
How was the radius of the Earth obtained or calculated?
W.
What is a sentence for quotient?
Quotient is the solution obtained during division .
What is given off by radioactive elements such as radium and Plutonium?
From these isotopes decay products are obtained and also ionizing radiations.
Why can scientists make technetium synthetically but not gold?
You might get gold but these obtained isotopes are radioactive and unstable; so it is useless.
What is A over B as a decimal?
The answer can be obtained by carrying out a long division of A by B.
Why are numbers combined with operations of addition subtraction multiplication and division?
Because if you did not combine them then you would have only one number: the number 1. You would not have 2 which is 1+1 and similarly no larger positive integers. Nor would you have negative integers which are obtained by subtraction. There would be no other rational numbers which are obtained by division. All in all, arithmetic would be pretty much useless.
How is curium created?
- in laboratory: 239Pu + 4He → 242Cm + 1n - curium isotopes are also obtained in nuclear power reactors
Can radium be manufactured artificially?
Radium is a natural chemical element, an alkali earth metal; but some isotopes of radium can be obtained artificially.
