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Laabri

Chem Unit 5 Homework 2

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Last updated 6 months ago
15 Nsɛmmisa
Hyɛ no nsow a efi ɔkyerɛwfo no hɔ:

This homeowrk assignment reviews atoms and ions including: ground state, excited state, Lewis dot diagram, Bohr models of ground and excited state, Heisenbrg Uncertainty Principle, Octet Rule, how atoms form ions

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1.

How are atoms in the ground state different from atoms in the excited state?

Drag the item to the appropriate category.

Use all items.

  • The atom could have extra energy levels.

  • All the electrons are in low energy levels and as close to the nucleus as they can get, in an organized and predictable pattern.

  • Electrons absorb energy to attain this state.

  • Electrons are in a variety of energy levels, and positions near the nucleus are empty.

  • The number of energy levels matches the element's row # on the Periodic Table.

  • Electrons release energy to attain this state.

  • Excited Atom

  • Ground-State Atom

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2.

Which of the following could an atom, such as carbon, oxygen, sodium, or chlorine, do in order to adhere to the Octet Rule?

Select all valid options.

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3.

How is the number of valence electrons used to determine what an atom is most likely to do to form an ion?

Draggable itemarrow_right_altCorresponding Item

has 8 valence electrons

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will lose electrons when it becomes an ion

has 5, 6, or 7 valence electrons

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will not form an ion

has 1, 2, or 3 valence electrons

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will gain electrons when it becomes an ion

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4.

Draw an atom of phosphorus in the ground state.

Write the element symbol in the nucleus and draw the electrons as dots or "e-".

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5.

Draw an atom of boron in the excited state.

Write the element symbol in the nucleus and draw the electrons as dots or "e-".

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6.

According to the Heisenberg Uncertainty Principle, which 2 values can not be known at the same time with a high degree of accuracy?

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7.

Which electrons are included in a Lewis dot diagram?

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8.

What is the special name for the outermost energy level of an atom?

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9.

Draw the Lewis dot diagram for an atom of argon, Ar.

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10.

Draw the Lewis dot diagram for an atom of aluminum, Al.

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11.

Match the value to the proper use of the Periodic Table.

Draggable itemarrow_right_altCorresponding Item

the number of electrons lost or gained to form an ion

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the number of the element's row

the number of the valence shell

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the number of the element's column

the number of valence electrons

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the number of blocks to the nearest noble gas

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12.

Determine the charge sulfur, S, will have when it forms an ion by adhering to the Octet Rule.

  1. Draw the Bohr model for sulfur's electrons using one color.

  2. Using a different color, alter the electrons to illustrate what sulfur does with electrons as it forms an ion.

  3. Write the ion's charge as a superscript for the element symbol in the nucleus.

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13.

Determine the charge sodium, Na, will have when it forms an ion by adhering to the Octet Rule.

  1. Draw the Bohr model for sodium's electrons using one color.

  2. Using a different color, alter the electrons to illustrate what sodium does with electrons as it forms an ion.

  3. Write the ion's charge as a superscript for the element symbol in the nucleus.

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14.

Match the image with the name of its shape.

Draggable itemarrow_right_altCorresponding Item

p sublevel and orbital shape

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d sublevel and orbital shape

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s sublevel and orbital shape

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15.

What is the maximum number of electrons that can occupy an orbital?