Answer:
Nitrogen (N)
Explanation:
From the question given above, the following data were obtained:
Electronic configuration of the element => 1s² 2s²2p³
Next, we shall determine the number of electrons present in the element.
Thus, the number of electrons in the element can be obtained as follow:
Number of electron = 2 + 2 + 3
Number of electron = 7
Next, we shall determine the number of protons in the element.
Since the element is neutral, the number of protons is the same as the number of electrons. Mathematically,
Number of protons = number of electrons
Number of electron = 7
Therefore,
Number of protons = 7
Finally, we shall determine the atomic number of the element.
The atomic number of an element is the number of protons in the atom of the element. Mathematically,
Atomic number = number of protons
Number of protons = 7
Therefore,
Atomic number = 7
Comparing the atomic number of the element ( i.e 7) with those in the periodic table, the name of the element is Nitrogen (N) since no two elements have the same atomic number.
Density is mass divided by volume.
49g/14cm^3 = 3.5 g/cm^3
Species that have a lone pair of electrons often donate electrons by resonance while substituents that are electron deficient take away electrons by resonance.
<h3>What is resonance?</h3>
The term resonace has to do with the movement of electron pairs in a molecule. Inductive effects has to do with the drawing of electron density towards an atom or bond.
The two effects depends on the nature of a substituent. For instance, species that have a lone pair of electrons often donate electrons by resonance while substituents that are electron deficient take away electrons by resonance.
The question is incomplete hence the exact nature of the substituents can not be determined.
Learn more about resonance: brainly.com/question/23287285?
Attraction for electrons in a chemical bond refers to electronegativity
all you have to do is look up the electronegativities on your reference table!
oxygen has an electronegativity of 3.4, fluorine has an electronegativity of 4.0, nitrogen has an electronegativity of 3.0, and chlorine has an electronegativity of 3.2.
least attraction = smallest number, so the answer would be (3) nitrogen
i hope this helps! :-)