Group 1A (also called Group IA or Alkali Metals) consists of elements like Lithium (Li), Sodium (Na), and Potassium (K). These elements share similar properties due to their electronic configuration, including high reactivity and one valence electron in their outermost orbital.
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90 Mins English English100 Questions100 Marks90 Mins English English40 Questions30 Marks25 Mins EnglishWhich of the following is NOT a Döbereiner’s triad?
In which of two groups of elements have highly negative electron gain enthalpies and readily add one or two electrons respectively to attain the stable noble gas configuration?
Which of the following elements is classified as a lanthanoid group element?
Given below are two statements:
Statement I: The period number in the long form of the periodic table is equal to magnetic quantum number of any element of the period.
Statement II: The period number in the long form of the periodic table is equal to maximum principal quantum number of any element of the period.
In the light of the above statements, choose the correct answer from the options given below:
Which of the following elements is calssified as an actinoid group element?
Which group did iodine belong to in Mendeleev’s table?
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