What are the 3 parts of an atom? An atom of an element has 10 protons. what is also true of that atom? What are atoms and elements, and how do they differ? What is the atomic mass of an atom that has 6 protons, 6 neutrons, and 6 electrons?
The actual mass of an atom at rest is very difficult to measure, as even the most massive of atoms are too light to express in conventional units. As such, scientists often use the unified atomic mass unit (u) – also called dalton (Da) – which is defined as a twelfth of the mass...
Theyareverysmall,andexistoutsideofthenucleusintheelectronscloudsorshells.Electronshaveanegativecharge(-)andhavealmostnomassatall.AtomicStructure Subatomic=smallerthanan atom Atomsaremadeupofthreesubatomicparticles:Livewhere?Havemass?Whatcharge?ProtonsInnucleus1a.m.u ...
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describe the structure of an atom. an atom consists of a nucleus, which contains protons and neutrons, surrounded by electrons. protons have a positive charge, neutrons have no charge, and electrons have a negative charge. the number of protons determines the element of the atom, while the ...
+ PROTONS + Positively charged subatomic particle Found in the nucleus of an atom – Center of the atom Each proton is assigned a charge of 1+. Each nucleus must contain at least one proton. Mass is equal to the mass of a neutron ...
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1.A nucleus (原子核) is about ___ of an atom(原子).A one million of B one million the siz
A proton (质子) is an infinitesimal (无穷小的) part of an atom.Now imagine if you can (and of course you can't) make smaller one of those protons down to a billionth of its normal size into a space so small that it would make a proton look huge. Now pack into that tiny, tiny...
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