From 3299ead42ad7481a7116ce7cc3e48ecd2d035986 Mon Sep 17 00:00:00 2001 From: altaf-creator Date: Mon, 18 Sep 2023 08:12:37 +0700 Subject: Unlock lessons\fisika (i forgot) --- lessons/fisika/atom/atom.html | 133 +++++++++++++++++++ lessons/fisika/atom/electron-config.html | 221 +++++++++++++++++++++++++++++++ 2 files changed, 354 insertions(+) create mode 100644 lessons/fisika/atom/atom.html create mode 100644 lessons/fisika/atom/electron-config.html (limited to 'lessons/fisika/atom') diff --git a/lessons/fisika/atom/atom.html b/lessons/fisika/atom/atom.html new file mode 100644 index 0000000..ef70b0b --- /dev/null +++ b/lessons/fisika/atom/atom.html @@ -0,0 +1,133 @@ + + + + + + + + + + Al Azhar 9th Grade Lesson Notes + + + + + + + + +
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✅ Verified
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Parts of An Atom

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artist's representation of an atom. Bohr's Model. Colors may be labelled different.

+

Symbol of An Atom

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(picture on the left) An example of an atom symbol, (picture on the right) The format of + an atom symbol (FOR INDONESIA)

+

Determining the number of Protons, Electrons, and Neutrons

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Protons and Electrons

+

If not electrically charged (will be discussed later), the proton and electron number will be the same as + the atom number.

+

Neutrons

+

Neutrons can be determined by using this following formula:
+ Atomic Mass - Atomic Number = Neutron Number +

Examples

+
+ +

+ Proton: 11
+ Electron: 11
+ Neutron: 23 - 11 = 12 +

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+
+ +

+ Proton: 6
+ Electron: 6
+ Neutron: 12 - 6 = 6 +

+
+

Ions

+ Electron count will be added or subtracted by ion charge.
+ If the ion charge is positive (cation / kation), subtract the electron count.
+ If the ion charge is negative (anion), add the electron count. For example: +
+ +

+ Proton: 6
+ Electron: 6 + 4 = 10
+ Neutron: 12 - 6 = 6 +

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+ +

+ Proton: 6
+ Electron: 6 - 2 = 4
+ Neutron: 24 - 12 = 12 +

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✅ Verified
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Electron Configuration

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Sub-Shell and Maximum Electron

+ + + + + + + + + + + + + + + + + + + + + +
Sub-ShellMaximum Electron
s2
p6
d10
f14
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How to Read / Order

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    +
  1. Start from the top-most arrow
    2. +
  2. Follow the direction of the arrow. For example;
    3. +
      +
    1. 1s, 2s, 2p, 3s
      2. +
    +
  3. Exponent the electron with maximum number of sub-shell until the total of exponents is equals to + Atom Number.
    4. +
  4. If the total is more than Atom Number, subtract the the last electron's exponent to make the total + equals to the atom number.
    5. +
+

Examples

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+ + 1s2, 2s2, 2p6, 3s2, 3p2 +
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+ + 1s2, 2s2, 2p6, 3s2, 3p6, + 4s2, 3d10, 4p3 +
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Electron Configuration Based on Shell

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+

an atom figure with shell labels (Oxygen)

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Electron Count Rules

+ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
Shell KWrite 2 if electron ≥ 2
Write 1 if electron < 2 (only for Hydrogen)
Shell LWrite 8 if electron ≥ 8
Write leftover electrons if electron < 8
Shell MWrite 18 if electron ≥ 18
Write 8 if 8 ≥ electron < 18
Write leftover electrons if electron < 8
Shell NWrite 32 if electron ≥ 32
Write 18 if 18 ≥ electron < 32
Write 8 if 8 ≥ electron < 18
Write leftover electrons if electron < 8
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How to Determine Electron Count

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    +
  1. Follow the rules
    2. +
  2. If the electrons (aka atomic number) = 0, you're done.
    3. +
+

Examples

+ + + + + + + + + + +
K + L + M + N +
24
+
+ + + + + + + + + + +
K + L + M + N +
282
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+ + + + + + + + + + +
K + L + M + N +
28185
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