The atomic numbers of the elements Na, Mg, K and Ca are 11, 12, 19 and 20 respectively. The element have the largest atomic radius is
The atomic numbers of the elements Na, Mg, K and Ca are 11, 12, 19 and 20 respectively
Periodic Table MCQs
An element X forms an oxide X^g. In which group of Modem periodic table is this element placed?
An element X forms an oxide X^g. In which group of Modem periodic table is this element placed?
The electronic configuration of the atom of an element X is 2, 4, 8. In the modern periodic table, the element X is placed in
The electronic configuration of the atom of an element X is 2, 4, 8. In the modern periodic table, the element X is placed in
The Newlands Law of Octaves for the classification of elements was found to be applicable only up to the element
The Newlands Law of Octaves for the classification of elements was found to be applicable only up to the element
Which one of the following does not increase while moving down the group of the periodic table?
Which one of the following does not increase while moving down the group of the periodic table?
The element A, B, C, D and E have atomic numbers 9, 11, 17, 12 and 13 respectively. The pair of elements which belongs to the same group of the periodic table is
The element A, B, C, D and E have atomic numbers 9, 11, 17, 12 and 13 respectively. The pair of elements which belongs to the same group of the periodic table is
Which of the following element would lose an electron easily?
Which of the following element would lose an electron easily?
Which of the following element would lose an electron easily? Read More »
Which of the following properties does not match element of the halogen family?
Which of the following properties does not match element of the halogen family?
Which of the following properties does not match element of the halogen family? Read More »
Which one of the following elements exhibit maximum number of valence electrons?
Which one of the following elements exhibit maximum number of valence electrons?
Which one of the following elements exhibit maximum number of valence electrons? Read More »
An element-X has mass number 40 and contains 21 neutrons in its atom. To which group of the periodic table does it belong?
An element-X has mass number 40 and contains 21 neutrons in its atom. To which group of the periodic table does it belong?