
اختبار ميد تجريبي
Quiz by Dr.Mariam
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  Electrons are found in the nucleus of the atom.
In an atom, the number of protons are equal to number of neutrons.
Isotopes differ in the number of ……..
 Identify the element that has an atomic number equal to32.
 How many significant figures are in 322000?
 Read the length of the metal bar with the correct number of significant figures.

What is the volume of a 11.99 g of metal with a density of 1.72 g/cm3?
  Foran electron in orbital 4f, the quantum numberl is   .
Which one of the following set of quantum numbers is allowed?
which one of the following orbitals cannot exist?