Physics, 19.08.2019 23:50 ezzyandrade7

Groups of the periodic table correspond to elements with:
a. the same color
b. the same atomic number
c. similar chemical properties
d. similar numbers of nuetrons

Answers: 2

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The same atomic number. The periodic table assembles all of the recognized elements appropriate increasing atomic number. Order usually accords with increasing atomic mass. The number of electrons in a period rises as one it moves down the periodic table; so, as the energy level of the atom rises, the number of energy sub-levels per energy level rises.

Answer from: maryalice2002

Answer;

C. Similar chemical properties

Explanation;

-The vertical columns on the periodic table are called groups or families because of their similar chemical behavior. All the members of a family of elements have the same number of valence electrons and similar chemical properties. The horizontal rows on the periodic table are called periods.

-For example; all of the 1A elements have one valence electron. This is what causes these elements to react in the same ways as the other members of the family. They are all very reactive and form compounds in the same ratios with similar properties with other elements. Because of their similarities in their chemical properties, these elements are in the same group. These elements are called alkali metals.

Answer from: Quest

there are no correct statementd on the list of choices you provided.

Answer from: Quest

we have been given a quadratic function $f(x)=(x-5)^{2} +2$ and we need to restrict the domain such that it becomes a one to one function.

we know that vertex of this quadratic function occurs at (5,2).

further, we know that range of this function is $[2,\infty)$ .

if we restrict the domain of this function to either $(-\infty,5]$ or $[5,\infty)$ , it will become one to one function.

let us know find its inverse.

$y=(x-5)^{2}+2$

upon interchanging x and y, we get:

$x=(y-5)^{2}+2$

let us now solve this function for y.

$(y-5)^{2}=x-2\\ y-5=\pm \sqrt{x-2}\\ y=5\pm \sqrt{x-2}\\$

hence, the inverse function would be $f^{-1}(x)=5+\sqrt{x-2}$ if we restrict the domain of original function to $[5,\infty)$ and the inverse function would be $f^{-1}(x)=5-\sqrt{x-2}$ if we restrict the domain to $(-\infty,5]$ .

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Groups of the periodic table correspond to elements with:
a. the same color
b. the same...

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