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Guide Questions:

1 How did you get the number of electrons of Chromium?

2. How did you determine the number of protons electrons and neutrons of each element in the periodic table?​


Sagot :

1.

24

The atomic number of chromium is 24 Its electronic configuration in ground state in 1s22s22p63s24s13d5 . Chromium atom by using 3 electron from Cr2+ .

2.You can simply subtract the atomic number from the mass number in order to find the number of neutrons. If the atom is neutral, the number of electrons will be equal to the number of protons.