annabelle10133 annabelle10133

28-09-2018
Chemistry

contestada

can someone please answer this

can someone please answer this class=

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Meetu1912 Meetu1912

28-09-2018

1 - 8
2 - 13
3 - 20
4 - 19
5 - 19
6 - 22
* protons - Atomic number
electrons - number of electrons is equal to number of protons k-41 is neutral
neutrons - Mass number - Atomic number
= 41 -19
= 22

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