Answer:
A metamorphic rock can be classifies according to its texture and compositions.
Explanation:
Answer:
If I am not wrong it should be B and D not entirely sure
Tin, because it has five energy levels with four electrons in the fifth level
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Explanation:
Tin has an electronic configuration as
1s2,2s2,2p6,3s2,...........4d10, 5s2,5p2
They have four valence electrons in their outer shell
Among the four diagrams given Tin is least reactive because the atomic radius of tin is largest among all four options. Due to large atomic radius electronegativity decreases and hence Tin is the least reactive element among Neon, Chlorine, gallium and tin.
The electronegativity of an element is its tendency to complete its octet by attracting electrons towards itself. Also tin is at the lowest place in the periodic table among all the four mentioned elements, its ionization energy is also low hence less electronegative and least reactive.
movement of people from one permanent home to another. This movement changes the population of a place. International migration is the movement from one country to another. ... People who move into another country are called immigrants .
