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Recent questions in Atomic Number
+11
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How many atoms does 26.8 moles of argon contain?
asked
Apr 13, 2022
in
Atomic Number
by
Boxer Red
+14
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0
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What are the possible electron configurations for a neutral atom with an atomic number of 10?
asked
Apr 12, 2022
in
Atomic Number
by
mosses501
+11
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What is the difference between an atom's mass number and its proton number? What can be derived from them about atoms in general, if anything at all?
asked
Apr 12, 2022
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Atomic Number
by
MystiqueHaven
+24
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0
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What is the relative atomic mass of element X?
asked
Apr 12, 2022
in
Atomic Number
by
Allsorts
+88
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0
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Do all chemical elements potentially exist? With an atomic number of 1000 for instance
asked
Apr 11, 2022
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Atomic Number
by
Giveitallago
+21
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0
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Which element has the atomic number 49?
asked
Apr 11, 2022
in
Atomic Number
by
questuk
+4
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0
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What should I take into consideration when calculating the number of atoms in a compound?
asked
Apr 11, 2022
in
Atomic Number
by
gymnastproject
+14
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0
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What is the number of atoms in 1 g of 226 Ra?
asked
Apr 10, 2022
in
Atomic Number
by
SolarisSeeker
+175
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0
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Why is the relative atomic mass of boron not a whole number?
asked
Apr 10, 2022
in
Atomic Number
by
WOLF
(
2.7k
points)
+27
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0
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Who assigned the atomic number of each element in the periodic table?
asked
Apr 10, 2022
in
Atomic Number
by
NovaSeeker
+20
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0
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How important is the discovery of the atomic number by Henry Moseley? Support your answer by stating the role of an atomic number.
asked
Apr 10, 2022
in
Atomic Number
by
Joe92
+20
votes
0
answers
Are van der Waals forces dependent on atomic size, electron number, or both? How?
asked
Mar 20, 2022
in
Atomic Number
by
EmberNova
+6
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0
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Why do all allotropes have different physical properties instead of the face that their atomic number and mass number are the same?
asked
Mar 20, 2022
in
Atomic Number
by
Fabien
(
1.8k
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+94
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0
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If atoms can never be created or destroyed, does that mean there’s a finite number of atoms?
asked
Mar 20, 2022
in
Atomic Number
by
Kaz69
0
votes
0
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The isotope of an element has nine neutrons. Its mass number is 17. What is the name and the atomic number of the element?
asked
Mar 20, 2022
in
Atomic Number
by
Christheone
+25
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0
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How does the number of atoms present in a substance affect its chemical formula and chemical name?
asked
Mar 20, 2022
in
Atomic Number
by
NebulaBreeze
+4
votes
0
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Which element has the atomic number 9 and the periodic symbol F?
asked
Mar 20, 2022
in
Atomic Number
by
skateboardzoom
+110
votes
0
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An element Y has two isotopes with mass number 63 and 65 respectively. It has relative atomic mass of 63.5. What is the relative atomic abundance of each isotope?
asked
Mar 19, 2022
in
Atomic Number
by
JulesF321
+4
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0
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Why are the atomic number and atomic mass written reversed in nuclear reaction equations (unlike in the periodic table: atomic number above and atomic mass below)?
asked
Mar 18, 2022
in
Atomic Number
by
StellarSculptor
+18
votes
0
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Which of the following is the proper number of atoms in a 0.50 mole sample of Ca(NO3) 2?
asked
Mar 18, 2022
in
Atomic Number
by
DFM
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