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If a neutral aluminum atom (al, Z = 13) becomes al + ¹³ it means that this A) lost 1 electron B) lost 3 electrons C) gained 1 electron D) gained 3 electrons
asked
Feb 9, 2021
Physics
high-school
1
answer
3
votes
109k
views
A plant that manufactures metal plates has a quality control team to check that the plates are the right size. A rectangular plate with dimensions 5 cm by 3 cm must have length within 0.25 cm of 5 cm.
asked
Feb 5, 2021
Mathematics
college
1
answer
1
vote
224k
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