answersLogoWhite

0


Best Answer

The atomic mass is an average because most atoms have isotopes sometimes up to 10 or more. These all have different numbers of neutrons and subsiquently different weights. For this reason an average of these weights needs to be used for the atomic mass.

User Avatar

Wiki User

15y ago
This answer is:
User Avatar
More answers
User Avatar

AnswerBot

1mo ago

The Atomic Mass listed on the Periodic Table is an average because many elements exist as isotopes, with different numbers of neutrons in their nuclei. By taking a weighted average based on the abundance of each isotope in nature, a more accurate atomic mass value for an element is calculated for practical purposes.

This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: Why is atomic mass for an element an average on the periodic table?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

What is the atomic number on the periodic table?

The atomic number on the periodic table is the number of protons for the element.


Was the first element on the periodic table of elements carbon?

NO!!! Hydrogen (H) is the first element on the Periodic Table. Reason Atomic No. = 1 Atomic mass( of protium) = 1 Carbon lies 6th position. Atomic No. = 6 Atomic mass = 12


What element on the periodic table weighs 19.32?

No element has an atomic weight of 19.32 on the periodic table.


An average of the masses of all the naturallly occurring isotopes of an element?

The weighted average for all isotopes that occur in nature for an element is its atomic weight listed on the Periodic Table of the elements.


The atomic mass listed in the periodic table is the?

The atomic mass listed in the periodic table is the weighted average of the masses of all the isotopes of an element, taking into account their abundance in nature. It is measured in atomic mass units (amu) and provides an average value that reflects the isotopic distribution of the element.


Can you find the atomic number of an element on the periodic table?

Yes, the atomic number of an element is typically listed above the element's symbol on the periodic table. The atomic number is the number of protons in the nucleus of an atom of that element.


What is the weighted average of the atomic masses of an element's naturally occurring isotopes is called the?

The weighted average of the atomic masses of an element's naturally occurring isotopes is called the atomic mass. This value takes into account the abundance of each isotope in nature when calculating the overall average atomic mass of the element.


Is the atomic number of each element included in the periodic table?

YES!!! The atomic No. is the postition of the element in the periodic table. It also indicates the number of protons in the element and electrons in the neutral element. The Atomic Mass is also included in the periodic table. The Atomic Mass is the sum of all the protons and neutrons of an element in the periodic table. Here are some examples. Hydrogen ; [1/1]H The first element in the table Carbon ; [12/6]C The sixth element in the periodic table Oxygen ; [16/8]O The eighth element in the periodic table et.seq., The first number given is the Atomic Mass and the second number is the Atomic Number.


What element is the first on the periodic table?

Hydrogen is the first element on periodic table. Its atomic number is 1.


What is the atomic mass of an element listed in the periodic table?

The atomic mass of an element listed in the periodic table is the weighted average mass of all the isotopes of that element, taking into account their natural abundance. It is expressed in atomic mass units (amu) or grams per mole (g/mol).


What is the atomic number of an element listed in the Periodic Table refers to?

The atomic umber of an element listed in the periodic table refers to number of protons in the element. Atomic number is equal to number of protons.


What element is Cu on the periodic table?

Copper is the element Cu on the periodic table. It has an atomic number of 29.