10. Give the number of protons, electrons, and neutrons in strontium-88.
O 38 protons, 38 electrons, and 88 neutrons
O 38 protons, 38 electrons, and 38 neutrons
O 38 protons, 38 electrons, and 50 neutrons
O 88 protons, 38 electrons, and 88 neutrons
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Ответ:
C.because protons and electrons are equal they will be 38 so neutron will be 50
Ответ:
There are four different representations of the orientation of water molecules around chloride anion. Let's first analyze the water molecule.
We have H-O-H as the structure of water. The oxygen atom is more electronegative than the hydrogen atoms, which results in a partial positive charge on the hydrogen atoms and a partial negative charge on the oxygen atom.
The chloride anion is a negative charge. Therefore, the water molecules should orient themselves with the hydrogen atoms facing the chlorine atom as the partial positive charge on the hydrogen atoms will be attracted to the negative charge of the chlorine atom.
The correct representation is shown in graph 3 which shows all hydrogen atoms facing the chlorine anion.