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Recent questions in Atomic Number
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What are some practical uses for knowing atomic numbers or masses of atoms/molecules, etc.?
asked
Jan 14, 2023
in
Atomic Number
by
Freya S
+27
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Why are neutrons considered when taking the mass number of atoms?
asked
Jan 14, 2023
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Atomic Number
by
whibley
+11
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How does the number of atoms in a 27.5-gram iron ring compare to the number in a nickel ring of the same mass?
asked
Jan 14, 2023
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Atomic Number
by
Hudson1984
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What are timeline illustrations and text showing on how elements form with the concept of atomic numbers?
asked
Jan 14, 2023
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Atomic Number
by
edvardo954
+169
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What is the symbol of copper in the periodic table?
asked
Jan 14, 2023
in
Atomic Number
by
LunarCharm
+33
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The atomic number is the number of protons in an atom. So why is it sometimes less than the actual number of protons in an atom?
asked
Jan 13, 2023
in
Atomic Number
by
Girl Pirate
+9
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Does the atomic number change when polonium 211 decays?
asked
Jan 13, 2023
in
Atomic Number
by
Schm565
+15
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What is the atomic number of an element whose cation y^ has the electronic configurations 1s^2, 2s^ 2, and 2p^6?
asked
Jan 13, 2023
in
Atomic Number
by
Felon
+78
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Why do we say that every atom has its own unique mass number even though they all have the same atomic number (number of protons)?
asked
Jan 13, 2023
in
Atomic Number
by
MANDY ALBERT
+9
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What is the importance of knowing the element's atomic number and its relative abundance on Earth and in space?
asked
Jan 13, 2023
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Atomic Number
by
Oxid8ter
+14
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What are the atomic numbers of Na and He?
asked
Jan 13, 2023
in
Atomic Number
by
tomplum
+111
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When do you use Roman numerals in chemistry?
asked
Jan 13, 2023
in
Atomic Number
by
Cheltrobin83
+15
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How do you explain why some elements are more stable than others when they have the same atomic number but different mass numbers or vice versa?
asked
Jan 12, 2023
in
Atomic Number
by
teabreak
+9
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Why do the elements on the periodic table 3-12 not have Roman numbers like group 1, 2 and 13-18?
asked
Jan 12, 2023
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Atomic Number
by
Craige1989
+216
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What is the number of fluorine atoms in 24.24 grams of sulfur hexafluoride?
asked
Jan 12, 2023
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Atomic Number
by
Conradfan
+22
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If an antiparticle has an atomic number of 8, what is the number of electrons?
asked
Jan 12, 2023
in
Atomic Number
by
Dave Reece
+321
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Does 0.5 mole of Mg atoms and 0.5 mole of oxygen gas have the same number of atoms?
asked
Jan 12, 2023
in
Atomic Number
by
Peter Allen
+1.3k
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Can atoms have the atomic number but different mass numbers?
asked
Jan 12, 2023
in
Atomic Number
by
MartinF
+121
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Which element has the highest atomic number among all elements except hydrogen, helium, lithium and beryllium?
asked
Jan 12, 2023
in
Atomic Number
by
M3016R
+17
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What is the heaviest element (i.e., the one with the highest atomic number) that is absolutely essential to organisms as a trace element?
asked
Jan 12, 2023
in
Atomic Number
by
honeysuckle
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