Question

1.) An element 'X' has six electrons in its outer or valence shell.
It's valency is _ [ +2/-2/-1].
2.) An element 'Y' has electronic configuration 2,8,6.
The element 'Y' is a _ [ metal/non - metal/noble gas].
3.)A _ [ proton/neutron] is a sub - atomic particle with no charge and unit mass.
4.)An element Z with zero valency is a _ [ metal/noble gas/non - metal].
5.) Magnesium atom with electronic configuration 2,8,2 achieves stable electronic configuration by losing two electrons, thereby achieving stable electronic configuration of the nearest noble gas _ [ neon / argon ].​

Answer 1

Answer:

Simple squamous epithelium

This type of epithelia lines the inner surface of all blood vessels (endothelium), forms the wall of alveolar sacs in the lung and lines the body cavities (mesothelium). The primary function of simple squamous epithelia is to facilitate diffusion of gases and small molecules.Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy that, through cellular respiration, can later be released to fuel the organism's metabolic activities. Wikipedia