Identify the element with the electronic configuration 1s21p4?
The element with the electronic configuration 1s21p4 is sulfur (S), which has 16 electrons.
The electronic configuration of sulfur can be written as:
1s2 2s2 2p6 3s2 3p4
In this configuration, the first two electrons occupy the 1s orbital, the next two electrons occupy the 2s orbital, and the next six electrons occupy the 2p orbital. The remaining four electrons are distributed between the 3s and 3p orbitals, with the last four electrons occupying the 3p orbital.
Identify the correct statements about alkali metals
A. The order of standard reduction potential \(\left( M ^{+} \mid M \right)\)for alkali metal ions is \(Na > Rb > Li\)
B. \(CsI\)is highly soluble in water.
C. Lithium carbonate is highly stable to heat.
D. Potassium dissolved in concentrated liquid ammonia is blue in colour and paramagnetic.
E. All the alkali metal hydrides are ionic solids.
Choose the correct answer from the options given below:
The number of s-electrons present in an ion with 55 protons in its unipositive state is