Atomic Vocabulary

Mr.Huff
Flashcards by Mr.Huff, updated more than 1 year ago
Mr.Huff
Created by Mr.Huff over 7 years ago
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Description

Middle School (7th Grade) Chemistry - Atoms/Periodic Table Flashcards on Atomic Vocabulary, created by Mr.Huff on 10/08/2013.

Resource summary

Question Answer
Atom Smallest particle that an element can be divided into and still be that element
Subatomic Particles Particles that make up an atom
Nucleus • Tiny, Dense, center of an atom<br><br> • Positive charge
Proton • Located in the nucleus <br><br> • Positive charge
Neutron • Located in the nucleus <br><br> • Has no charge
Electron • Located in a “cloud” outside the nucleus <br><br> • Has a negative charge <br><br> • Usually the same as the number of protons
Law of Electromagnetic Force • Particles with the SAME charge repel each other <br><br> • Particles with OPPOSITE charges attract each other
Isotope An atom of an element with a different number of neutrons
Atomic Number • The number of protons in an atom <br><br> • ALL atoms of the same element have the same number of protons, which means they have the same atomic number
Mass Number (Atomic Mass) Neutrons + Protons in an atom
Quark Particles that make up neutrons and protons
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