Question Bank
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How many electrons are in a neutral atom of Sodium?
What is the subshell electronic configuration of Potassium (At. No. 19)?
Which of the following elements has the highest ionization energy?
Calculate the number of neutrons in an isotope of Uranium-235 (At. No. 92).
Elements in the same period of the periodic table have the same:
Which element is located in Period 3 and Group IIA (Group 2)?
What is the valency of an element with atomic number 16?
Which of the following is the correct order of increasing atomic size?
An element has 2 electrons in the K shell, 8 in the L shell, and 3 in the M shell. Identify the element.
Which element has the maximum electronegativity in the periodic table?
How many p-electrons are there in a Sulfur atom (At. No. 16)?
The electronic configuration of an ion X2+ is 2, 8. What is the atomic number of X?
Identify the element that does not belong to the same group as others.
What is the maximum number of electrons that can be accommodated in the 'M' shell?
Isotopes of an element have different numbers of:
Which element is commonly used as a semiconductor?
The diagonal relationship in the periodic table is shown by: