Question Bank
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Which element has 4 valence electrons and is in Period 2?
Which of these is a liquid non-metal at room temperature?
What is the common valency of Group IIA (Alkaline Earth Metals)?
Which of the following elements is a metalloid?
The tendency of an atom to attract a shared pair of electrons is called:
How many shells are used in the electronic configuration of Calcium?
Which element is used in the filament of a light bulb?
The reactivity of metals __________ down the group in alkali metals.
Which element has the lowest atomic number among the halogens?
What is the number of valence electrons in Oxygen?
Which of the following is an alkaline earth metal?
Which element has the electron configuration $1s^2 2s^2 2p^6 3s^2 3p^1$?
Which element shows an exceptional electronic configuration due to the stability of half-filled subshells?
Across a period from left to right, the metallic character of elements:
Which of the following atoms has the smallest radius?