The energy required for he+ he2+ + e is ..... Energy required for he he+(g) + e is 10ev/ atom is
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Sweeping and vacuuming may keep your hardwood floors fairly clean, but you’ll eventually need to mop them to remove stubborn dirt and grime. Though the process may seem intimidating if you’ve never done it before, mopping a floor is actually quite easy and requires very little skill.
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Sweeping and vacuuming may keep your hardwood floors fairly clean, but you’ll eventually need to mop them to remove stubborn dirt and grime. Though the process may seem intimidating if you’ve never done it before, mopping a floor is actually quite easy and requires very little skill.
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