Interpretation: The given elements should be arranged in the increasing order of their atomic radius using the periodic table.
Concept Introduction:
Periodic Table: The available chemical elements are arranged considering their
In periodic table the horizontal rows are called periods and the vertical column are called group.
There are seven periods and 18 groups present in the table and some of those groups are given special name as follows,
Atomic Number: Atomic number of the element is equal to the number of protons present in the nucleus of the element which is denoted by symbol Z. The superscript presents on the left side of the
Atomic radius: Atomic radius is the distance between the atomic nucleus and outermost electron of an atom. From the atomic radius, the size of atoms can be visualized. But there is no specific distance from nucleus to electron due to electron cloud around the atom does not have well-defined boundary.
The atomic radius follows the specific trend in the periodic table that it gets decreases as we go from left to right of the period due to increased nuclear charge the electrons gets added to the same sub-shell strongly binds resulting to decrease in the size.
It increases as we move from top to bottom of the table due to addition of shell in the element.
To determine: The increasing atomic size order for given elements.
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Chemistry: Atoms First
- Does the information on alkali metals in Table 2-8 of the text confirm the general periodic trends in ionization energy and atomic radius? Explain.arrow_forwardBased on their positions in the periodic table, predict which has the smallest atomic radius: Mg, Sr, Si, Cl, I.arrow_forwardThe horizontal rows of the periodic table are called: a. families b. group c. representative elements d. periodsarrow_forward
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