SCIENCE
CHEMISTRY
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Detailed explanation-1: -Nitrogen, the next nonmetal, has 5 electrons in the valence shell, so it needs to combine with 3 hydrogen atoms to fulfill the octet rule and form a stable compound called ammonia (NH3).
Detailed explanation-2: -Nitrogen atoms will form three covalent bonds (also called triple covalent) between two atoms of nitrogen because each nitrogen atom needs three electrons to fill its outermost shell.
Detailed explanation-3: -And we know that the atomic number of nitrogen is 7, so, the number of protons in nitrogen is 7. The number of electrons in an atom is always equal to the number of protons. So, in nitrogen-15, the number of protons in the nucleus are seven and thus, the number of electrons revolving around the nucleus is also seven.
Detailed explanation-4: -Nitrogen is the seventh element with a total of 7 electrons. In writing the electron configuration for nitrogen the first two electrons will go in the 1s orbital. Since 1s can only hold two electrons the next 2 electrons for N goes in the 2s orbital. The remaining three electrons will go in the 2p orbital.