the first shell can hold a maximum of two electrons. How does this explain the valance of hydrogen? HELP ILL MARK BRAINLIEST

hydrogen has only the valence electron because it is in the first group, it has one valence electron and one valence. So the sum of hydrogen's number of valence electrons and valence is two

volcanoes (an event in the geosphere) release a large amount of particulate matter into the atmosphere. these particles serve as nuclei for the formation of water droplets (hydrosphere). rainfall (hydrosphere) often increases following an eruption, stimulating plant growth (biosphere).

that would be called plucking : )

explanation:

''plucking, also referred to as quarrying, is a glacial phenomenon that is responsible for the erosion and transportation of individual pieces of bedrock, especially large "joint blocks". as a glacier moves down a valley, friction causes the basal ice of the glacier to melt and infiltrate joints (cracks) in the bedrock."