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grin007 [14]
3 years ago
5

What do hydrogen and helium have in common?

Physics
1 answer:
Savatey [412]3 years ago
4 0

Atomic disguise makes helium look like hydrogen. ... A helium atom consists of a nucleus containing two positively charged protons and two neutrons, encircled by two orbiting electrons which carry a negative charge. A hydrogen atom has just one proton and one electron

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