atoms

husien jama
Flashcards by husien jama, updated more than 1 year ago
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medium science Flashcards on atoms, created by husien jama on 04/17/2016.

Resource summary

Question Answer
what is an atom? the fundamental building blocks of all things.
what is an atomic number? the number of protons in a nucleus.
what is a compound? a pure substance made up of two or more different types of atoms.
what is used to look at an atom? STM
how many known atoms are there? 118 atoms.
how many atoms are naturally found on Earth? 91 are naturally found on Earth.
how many atoms are made in a laboratory? 27.
what is a molecule? a cluster of atoms.
what is an element? a substance made of just one atom.
what is the nucleus? protons and neutrons sitting in the center of an atom.
what are atoms made up of? Nucleus , Electron cloud ,protons ,neurons.
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