In order to design a circuit that takes three bits (x2, x1, x0) as input and produces one output bit (0), the following K-map truth table is built to produce 1 as an output (0) if and only if x2x1x0 representing a 3-bit two’s complement is positive. Select the most simplified sum-of-product form for the output (0).

In which one of the following species is the central atom (the first atom in the formula) an exception to the octet rule?

In the following Lewis structure for phosphate, phosphorus has a formal charge of ____ and an oxidation number of ____.

How many faces and how many vertexes (corners), respectively, are there in a trigonal bipyramid?

Select the correct electron configuration for element Sulfur (Z = 16).

According to VSEPR theory, a molecule with the general formula AX5 will have a ______ molecular shape.

In the nitrate ion (NO3–), nitrogen and oxygen are held together by

Which of the following sublevel is filled last? 3d, 4s, 4p, 4d, 5s

Select the strongest bond in the following group

In which of these substances are the atoms held together by metallic bonding?