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The arrangement of elements in the Modern Periodic Table is based on their\s
  • a)
    rising atomic mass in the period\s
  • b)
    increasing atomic number in the horizontal rows
  • c)
    increasing atomic number in the vertical columns
  • d)
    increasing atomic mass in the group
Correct answer is option 'B'. Can you explain this answer?
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The arrangement of elements in the Modern Periodic Table is based on t...
Arrangement of elements in the Modern Periodic Table:
The Modern Periodic Table is arranged based on the increasing atomic number in the horizontal rows. Let's break down this concept further:

Atomic Number:
- The atomic number of an element is the number of protons in the nucleus of an atom. It uniquely identifies an element.
- In the Modern Periodic Table, elements are arranged in order of increasing atomic number from left to right in each period (horizontal row).

Horizontal Rows (Periods):
- The horizontal rows in the Periodic Table are called periods.
- As you move from left to right across a period, the atomic number of the elements increases by one.

Significance:
- The arrangement of elements based on increasing atomic number helps in organizing elements with similar chemical properties in the same vertical columns (groups).
- This arrangement also helps in predicting the properties of elements and their compounds.

Example:
- For example, in Period 2, the elements Lithium (Li), Beryllium (Be), Boron (B), Carbon (C), Nitrogen (N), Oxygen (O), Fluorine (F), and Neon (Ne) are arranged in increasing atomic number.
In conclusion, the Modern Periodic Table is structured in a way that elements are organized based on their increasing atomic number in the horizontal rows (periods). This arrangement helps in understanding the periodic trends and properties of elements.
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The arrangement of elements in the Modern Periodic Table is based on t...
The elements are listed in ascending order of atomic numbers, with heavier elements at the top of the list. The horizontal rows of the periodic table are referred to as Periods, and the vertical columns of the periodic table are referred to as Groups. The elements in the Modern Periodic Table are divided into seven Periods and eighteen Groups, as shown in the diagram below. The chemical elements are arranged from left to right and top to bottom in order of increasing atomic number, or the number of protons in an atom’s nucleus, which generally corresponds to increasing atomic mass. The elements are arranged from left to right and top to bottom in order of increasing atomic mass.
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Read the passage given below and answer the following questions:The d block elements are the 40 elements contained in the four rows of ten columns (3-12) in the periodic table. As all the d block elements are metallic, the term d-block metals is synonymous. This set of d-block elements is also often identified as the transition metals, but sometimes the group 12 elements (zinc, cadmium, mercury) are excluded from the transition metals as the transition elements are defined as those with partly filled d or f shells in their compounds. Inclusion of the elements zinc, cadmium and mercury is necessary as some properties of the group 12 elements are appropriate logically to include with a discussion of transition metal chemistry. The term transition element or transition metal appeared to derive from early studies of periodicity such as the Mendeleev periodic table of the elements. His horizontal table of the elements was an attempt to group the elements together so that the chemistry of elements might be explained and predicted. In this table there are eight groups labeled I-VIII with each subdivided into A and B subgroups. Mendeleev recognized that certain properties of elements in Group VIII are related to those of some of the elements in Group VII and those at the start of the next row Group I. In that sense, these elements might be described as possessing properties transitional from one row of the table to the next.In the following questions, a statement of assertion followed by a statement of reason is given. Choose the correct answer out of the following choices on the basis of the above passage.Assertion (

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The arrangement of elements in the Modern Periodic Table is based on their\sa)rising atomic mass in the period\sb)increasing atomic number in the horizontal rowsc)increasing atomic number in the vertical columnsd)increasing atomic mass in the groupCorrect answer is option 'B'. Can you explain this answer?
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