Catalyst. Finish these sentences: Elements are… I THINK atoms are…. Homework Time. Unit 1 – Atomic Theory and the Periodic Table. Death by Element. Who’s in Charge?. It takes 31 cuts to get to the size of the atom! It is 0.0000007 mm!. Lecture 1.1 – Introduction to the Atom.
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Finish these sentences:
Death by Element
It takes 31 cuts to get to the size of the atom! It is 0.0000007 mm!
LT 1.1 – I can identify the size, location, and mass of the three subatomic particles found in the atom.
Protons are found in the nucleus of an atom.
The nucleus is located in the center of the atom.
Protons have a positive charge. We say that their charge is +1
James Chadwick discovered the neutron in 1932!
Neutrons are found in the nucleus of an atom.
Neutrons do not have a charge. They are neutral
Electrons are found in the electron cloud.
The electron cloud surrounds the nucleus of an atom.
Electrons have a -1 charge
Electrons have a mass that is 0.00054 amu.
Electrons do not contribute to the weight of an atom.
To be neutral, the positives and negatives must cancel out!
Equal nmbr of protons and electrons #Chemswag #Learning #MrAstorIsABoss
The resulting charge is zero!