Basic Chemistry Tutorial 2, Drawing Atoms - Learn-biology

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[h] Flashcards: Atomic Structure

[i] Instructions

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[q] Carbon has 6 protons, 6 neutrons, 6 electrons. On a sheet of paper, draw a carbon atom, then flip the card to see if you drew it correctly.

[a]

Carbon’s protons and neutrons go into the nucleus. The first two electrons go into the first energy level. The next four electrons go into the second energy level. To represent how carbon forms chemical bonds, it’s best to draw all four electrons as being unpaired.

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[q] Sodium has 11 protons, 11 neutrons, 11 electrons. On a sheet of paper, draw a sodium atom, then flip the card to see if you drew it correctly.

[a]

Sodium’s protons and neutrons go into the nucleus. The first two electrons go into the first energy level. The next eight electrons go into the second energy level and are best shown as four pairs. The last electron goes into the third energy level.

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[q] Oxygen has 8 protons, 8 neutrons, and 8 electrons. On a sheet of paper, draw an oxygen atom, then flip the card to see if you drew it correctly.

[a]

Oxygen’s protons and neutrons go into the nucleus. The first two electrons go into the first energy level. The next six electrons go into the second energy level. The best way to represent the electrons is to draw them as two pairs, and two more single electrons.

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[q] Phosphorus has 15 protons, 15 neutrons, and 15 electrons. On a sheet of paper, draw a phosphorus atom, then flip the card to see if you drew it correctly.

[a]

Phosphorus’s protons and neutrons go into the nucleus. The first two electrons go into the first energy level. The next eight electrons go into the second energy level. The next five electrons go into the third.

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[q] Potassium has 19 protons, 19 neutrons, 19 electrons. On a sheet of paper, draw a potassium atom, then flip the card to see if you drew it correctly.

[a]

Potassium’s protons and neutrons go into the nucleus. The first two electrons go into the first energy level. The next eight electrons go into the second energy level. The next eight electrons go into the third energy level. The last electron goes into the fourth energy level.

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[q] Nitrogen has 7 protons, 7 neutrons, and 7 electrons. On a sheet of paper, draw a nitrogen atom, then flip the card to see if you drew it correctly.

[a]

Nitrogen’s protons and neutrons go into the nucleus. The first two electrons go into the first energy level. The next five electrons go into the second energy level. The best way to represent the electrons is to draw them as one pair, and three single electrons.

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