Atomic Theory Task Cards

Atomic Theory Task Cards
Atomic Theory Task Cards
Atomic Theory Task Cards
Atomic Theory Task Cards
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713 KB|14 pages
Product Description
This is an independent activity. Items included in this packed:
*20 Task Cards on Atomic Theory
*Student Response Sheet
*Teacher Answer Key

Topics covered include but are not limited to development of the atomic model, charge on subatomic particles, calculation of average atomic mass and the difference between ground and excited state electrons.

New York State Standards include
The modern model of the atom has evolved over a long period of time through the work of many scientists.
I.2 Each atom has a nucleus, with an overall positive charge, surrounded by one or more negatively charged electrons. (3.1b)
I.3 Subatomic particles contained in the nucleus include protons and neutrons. (3.1c)
I.4 The proton is positively charged, and the neutron has no charge. The electron is negatively charged. (3.1d)
I.5 Protons and electrons have equal but opposite charges. The number of protons equals the number of electrons in an atom. (3.1e)
I.6 The mass of each proton and each neutron is approximately equal to each other (3.1f)
I.7 In the wave-mechanical model (electron cloud model), the electrons are in orbitals, (3.1h)
I.9 When an electron in an atom gains a specific amount of energy, the electron is at a higher energy state (excited state). (3.1j)
I.10 When an electron returns from a higher energy state to a lower energy state, a specific amount of energy is emitted. (3.1k)
I.11 The outermost electrons in an atom are called the valence electrons (3.1l)
I.12 Atoms of an element that contain the same number of protons but a different number of neutrons are called isotopes of that element. (3.1m)
I.13 The average atomic mass of an element is the weighted average of the masses of its naturally occurring isotopes. (3.1n)

Total Pages
14 pages
Answer Key
Teaching Duration
2 days
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