Chemistry, 07.07.2019 16:00, savage5447
Hello can somone me ? copper has an atomic number of 29. that means that there are 29 protons in the nucleus of each copper atom. that's what the atomic number is; the number of protons in an atom of a certain element. if one copper atom contains 29 protons, how many elections are there in in 4 atoms of copper?
Answers: 1
Chemistry, 22.06.2019 04:30, homeschool0123
How many moles of air are there in a human lung with a volume of 2.4 l at stp? explain your answer
Answers: 1
Chemistry, 22.06.2019 10:30, kylemartinez13
Which characteristics can be used to differentiate star systems? check all that apply.
Answers: 2
Chemistry, 22.06.2019 15:00, MilanPatel
How is the shape of the poem “peer” connected to its meaning?
Answers: 2
Hello can somone me ? copper has an atomic number of 29. that means that there are 29 protons in t...
Social Studies, 01.10.2019 01:20
Mathematics, 01.10.2019 01:20