Ask Question
ChemistryChemistry
13 July, 01:43

Why are relative atomic masses on the periodic tables not whole numbers?

+1
Answers (2)
  1. 13 July, 03:11
    0
    They are averages.

    Explanation:

    atomic numbers on periodic tables are derived from the average value of all the isotopes of the element. So being averages they are sometimes not integers.
  2. 13 July, 04:25
    0
    The sum of the number of protons and neutrons in an atom is called the mass number. Atomic mass is never an integer number for several reasons: The atomic mass reported on a periodic table is the weighted average of all the naturally occurring isotopes. Being an average it would be most unlikely to be a whole number.
Know the Answer?
Not Sure About the Answer?
Find an answer to your question ✅ “Why are relative atomic masses on the periodic tables not whole numbers? ...” in 📘 Chemistry if you're in doubt about the correctness of the answers or there's no answer, then try to use the smart search and find answers to the similar questions.
Search for Other Answers
You Might be Interested in
When water dissolves salt, which process is not involved?
Answers (2)
Send Message 12 of 14 The gravitational force on the moon is 1.6 m/s2. If an astronaut has a mass of 84 kg on Earth, what will be his mass when he is standing on the moon? O A. 52.5 N OB. 84.0 N 0 C. 134.4 N OD. 823.2 N
Answers (1)
On the basis of the solubility curves shown above, the greatest percentage of which compound can be recovered by cooling a saturated solution of that compound from 90°C to 30°C? A) KCl B) NaNO3 C) NaCl D) KNO3
Answers (2)
A man carrying a torch walks though a jungle on a very dark night. Suddenly, he sees two eyes looking down from a tree that seem to be glowing. Why can the man see them? A. The eyes in the tree are producing their own light. B.
Answers (1)
A tank contains helium gas at 191 mm HG nitrogen gas at 0.261 ATM and neon at 522 torr what is the total pressure in MM Hg
Answers (1)
New Questions in Chemistry
The mass of a solid copper penny is 3.46 g. how many copper atoms are in the penny?
Answers (1)
Consider a situation in which 211 g g of P4 P 4 are exposed to 240 g g of O2 O 2 . What is the maximum amount in moles of P2O5 P 2 O 5 that can theoretically be made from 211 g g of P4 P 4 and excess oxygen?
Answers (1)
What is the total pressure when 0.400 g of H2, 2.00 g of N2, and 10.5 g of CO2 are injected into a 10.0 liter flask at 273 K?
Answers (1)
The balanced chemical equation for the combustion of methane is: CH4 (g) + 2 O2 (g) → CO2 (g) + 2 H2O (g) Which of the following statements concerning this chemical equation is/are correct? 1.
Answers (1)
In one kind of nuclear reaction, two nuclei fuse, or join together, to form a larger nucleus. This kind of reaction happens only at very high pressures. Explain why such high pressures are necessary to cause these reactions to occur.
Answers (1)
Home » Chemistry » Why are relative atomic masses on the periodic tables not whole numbers?
Sign Up Forgot Password?