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Recent questions and answers in Atomic Mass
+12
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0
answers
What is the atomic number of rhenium?
answered
May 26, 2023
in
Atomic Mass
by
Davey
+210
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0
answers
What is the smallest atom with the maximum mass?
answered
May 25, 2023
in
Atomic Mass
by
CelestialDreamer
+40
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0
answers
Why is carbon-12 chosen as a reference standard for the relative atomic and molecular masses?
answered
May 24, 2023
in
Atomic Mass
by
tinkerbell60
+13
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0
answers
Can two atoms have the same atomic number but different masses or charges? If yes, then how can this happen?
answered
May 24, 2023
in
Atomic Mass
by
maharg
+2
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0
answers
Neon has two major isotopes, -20 and neon -22. What’s the atomic mass of 22Ne isotope if the Atomic mass and percentage abundance of 20Ne in 19.992 amu and 90% respectively?
answered
May 24, 2023
in
Atomic Mass
by
TeesdaleSpark
+3
votes
0
answers
What is the mass of 1 atom of oxygen?
answered
May 23, 2023
in
Atomic Mass
by
RadiantVerse
+5
votes
0
answers
While calculating relative atomic masses, we have only taken 1/12 of the mass of 1 atom of a C-12 isotope of carbon for comparison. Why?
answered
May 23, 2023
in
Atomic Mass
by
winterdiy
+5
votes
0
answers
What are the atomic mass of the first 20 elements?
answered
May 23, 2023
in
Atomic Mass
by
solvegunnage
+23
votes
0
answers
What is an example in the periodic table where the elements are not in order of their relative atomic weight?
answered
May 22, 2023
in
Atomic Mass
by
Mr.KnowAll
+16
votes
0
answers
The average atomic mass of copper is 63.546 amu. Copper has two naturally occurring isotopes. Cu-63 has an atomic mass of 62.9296 amu, and an abundance of 69.15%. What is the atomic mass of the second isotope?
answered
May 22, 2023
in
Atomic Mass
by
DIY_Cal
+5
votes
0
answers
What is atomic mass and relative atomic mass?
answered
May 22, 2023
in
Atomic Mass
by
Oz
+9
votes
0
answers
What changes in the atomic number and mass number occur in positron emission?
answered
May 22, 2023
in
Atomic Mass
by
Combo
+305
votes
0
answers
How many carbon atoms are there in 12 Planck's mass of carbon at NTP?
answered
May 22, 2023
in
Atomic Mass
by
Mr Milliamp
+7
votes
0
answers
What are some examples of inert elements and their symbols and atomic masses?
answered
May 22, 2023
in
Atomic Mass
by
Gatorgrip
+3
votes
0
answers
What is the atomic mass of fluorine?
answered
May 22, 2023
in
Atomic Mass
by
yellneigh
+6
votes
0
answers
Antimony has two naturally occurring isotopes, antimony-121 and iridium-123. If antimony-121 has an atomic mass of, 120.9038 u, and an isotopic abundance of 57.30%, what is the atomic mass of antimony-123?
answered
May 21, 2023
in
Atomic Mass
by
ALIWINDOWS
+11
votes
0
answers
What mass of Na metal contains the same number of atoms as 12g of C?
answered
May 21, 2023
in
Atomic Mass
by
mrppp
+13
votes
0
answers
What is the number of zinc atoms in a piece of zinc weighing 10g (atomic mass of Zn=65)?
answered
May 21, 2023
in
Atomic Mass
by
solvegunnage
+37
votes
0
answers
Why is gram atomic mass of an element equal to 6.023 ×10^23 atoms?
answered
May 21, 2023
in
Atomic Mass
by
wordnext
+26
votes
0
answers
Why are the atomic masses on the periodic table not expressed as whole numbers like the mass number of an element?
answered
May 21, 2023
in
Atomic Mass
by
FadBurty
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Recent questions and answers in Atomic Mass
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