
(a)
Interpretation:
Whether the elements calcium, barium and radium are present in same group or period in the periodic table should be determined.
Concept Introduction:
An atom is composed of three main sub-atomic particles; electrons, neutrons and protons. The
(b)
Interpretation:
Whether the elements rhodium, cadmium and tin are present in same group or period in the periodic table should be determined.
Concept Introduction:
An atom is composed of three main sub-atomic particles; electrons, neutrons and protons. The atomic number of the elements represents the number of protons or electrons in a neutral atom. All known elements are arranged in a tabular form in increasing order of their atomic number that is called as the periodic table. The distribution of electrons in an atom can be shown with the help of electronic configuration. The electronic configuration of an element represents the number of electrons in different energy levels of an element.

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Chapter 2 Solutions
Loose Leaf for General, Organic and Biological Chemistry with Connect 2 Year Access Card
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