Can someone help me please it’s urgent. ASAP

Subduction zones occur on earth where dense oceanic crust dives under more buoyant continental crust. these boundaries are characterized by a deep ocean trench next to a high continental mountain range, large numbers of earthquakes and volcanoes. all of this is further evidence for the a) big bang theory b) origin of the species eliminate c theory of plate tectonics d theory of natural selection 4 sedimentary rocks found high in the himalayen mountain

What neutral atom is isoelectronic to mn+4

Asingle atom of an element has 21 neutrons, 20 electrons, and 20 protons. which element is it? ok o z