Question

how is the modern periodic table arranged?

Answer 1

The rows of the periodic table are called periods. An element's period number is the highest unexcited energy level for an electron of that element.Columns of elements help to distinguish groups in the periodic table. Elements within a group share several common properties and often have the same outer electron arrangement.Most of the elements on the periodic table are metals. The alkali metals, alkaline earths, basic metals, transition metals, lanthanides and actinides all are groups of metals.The present periodic table has room for 118 elements. Elements aren't discovered or created in order of atomic number. Scientists are working on creating and verifying element 120, which will change the appearance of the table.People usually expect atoms of an element to get larger as their atomic number increases, this doesn't always occur because the size of an atom is determined by the diameter of its electron shell. An elements atoms usually decrease in size as you move from left to right across a row or period.The main difference between the modern periodic table and Mendeleev's periodic table is that Mendeleev's table arranged the elements in order of increasing atomic weight while the modern table orders the elements by increasing atomic number.

Answer 2

Just focus on the last sentence.

Answer 3

Welcome to OpenStudy, @JbhFreeman !

Answer 4

It depends on multiple factors. Some of these factors include the type of element it is, the mass of the element, the number of electrons, protons, and neutrons it has, and much more.

Answer 5

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Answer 6

Hi, I can see that you are a new member here at OpenStudy so, I would first like to say Welcome to OpenStudy, I would like to point you to the chat pods these chat pods are where you can make new friends and talk to new people just like you,

I would also like to emphasize our "NON-CHEATING POLICY" we ask here at OpenStudy that you do NOT post exam/Test questions if you are caught doing this we will NOTIFY YOUR CURRENT SCHOOL

I would also like to ask you to check out the OpenStudy "Code of Conduct" http://openstudy.com/code-of-conduct Please read this carefully and thoroughly. If you need any help feel free to message me or any other ambassador.

Welcome to the OpenStudy Community!
Ambassador SWAG