what is a mole,atomic mass unit,isotopes,isobars.molar mass,molecular mass and vallency.
Asked by paddipawar
| 21st Nov, 2014,
06:41: AM
Expert Answer:
Isotopes:
Isotopes are variants of a particular chemical element which differ in neutron number, although all isotopes of a given element have the same number of protons.
Isobars:
Isobars are atoms (nuclides) of different chemical elements that have the same number of nucleons. Correspondingly, isobars differ in atomic number (or number of protons) but have the same mass number.
Molar mass:
It is defined as the mass of a given substance (chemical element or chemical compound) divided by its amount of substance.
Molecular mass:
Molecular mass or molecular weight refers to the mass of a molecule. It is calculated as the sum of the mass of each constituent atom multiplied by the number of atoms of that element in the molecular formula.
Valency:
The valency of an element measures its ability to combine with other elements. The valency is determined by the number of electrons in the outer shell of each atom of an element.
Isotopes:
Isotopes are variants of a particular chemical element which differ in neutron number, although all isotopes of a given element have the same number of protons.
Isobars:
Isobars are atoms (nuclides) of different chemical elements that have the same number of nucleons. Correspondingly, isobars differ in atomic number (or number of protons) but have the same mass number.
Molar mass:
It is defined as the mass of a given substance (chemical element or chemical compound) divided by its amount of substance.
Molecular mass:
Molecular mass or molecular weight refers to the mass of a molecule. It is calculated as the sum of the mass of each constituent atom multiplied by the number of atoms of that element in the molecular formula.
Valency:
The valency of an element measures its ability to combine with other elements. The valency is determined by the number of electrons in the outer shell of each atom of an element.
Answered by Prachi Sawant
| 21st Nov, 2014,
11:12: AM
Application Videos
Concept Videos
- how many moles in an atom
- molar mass of one mole of alcl3
- what is a solution??
- Calculate the mass in grams for the following: A)0.5 mol of calcium sulphate (caSo4). B) 0.25 mol of carbon dioxide gas (co2) { cu=40,s=32,o=16,c=12}.
- how to make molecular mass and mole concept
- What is the unit of mole?
- how many litres of steam will be formed from 2L of H2 and 1L of O2 if all volumes are present in same temperature and pressure temperature temperature a
- Number of moles in 2kg electrons ?
- How to find concentration of the solutions
- Provide me all formulae related to ♦ MOLE CONCEPT♦.
Kindly Sign up for a personalised experience
- Ask Study Doubts
- Sample Papers
- Past Year Papers
- Textbook Solutions
Sign Up
Verify mobile number
Enter the OTP sent to your number
Change