Write true if the statement is true. If the statement is false, change the under

Question

Write true if the statement is true. If the statement is false, change the underlined terms to make the statement true. Write your answers in the spaces provided. ______________ 1. All atoms of the same element have the same atomic mass. _____________ 2. Two important isotopes of uranium are U-235 and U-200. _____________ 3. Atoms of the same element that have different atomic masses are called isotopes. _________________ 4. Three isotopes of nitrogen are protium, deuterium, and tritium. _______________ 5. The periodic table gives the average of the atomic masses of all the isotopes of an element.

Explanation / Answer

1.True:- All atoms of the same elements have same atomic number

If an element undergoes ionisation it only differ in number of electrons but number of protons always remain same for example

2. True--Two important isotopes of Uranium are U235 and U238

3. Ture Atoms of the same elements that have different atomic masses are called Isotopes.

Eg:

Hydrogen has three isotopes

4. False:- Three Isotopes of nitrogen are Protium, Deutrium and Tritium

5. True:-The periodic table gives the average of the atomic masses of all the isotopes of the elements.

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