
KIMIA X IPA 1 KD 3.2 - MATERI 8 (Notasi Atom)
Presentation
•
Chemistry
•
10th Grade
•
Medium
Ulfiatul Laili
Used 7+ times
FREE Resource
4 Slides • 8 Questions
1
NOTASI ATOM
Keterangan:
A = Nomor Massa
Z = Nomor Atom
X = Lambang Unsur
2
NOMOR ATOM (Z)
Nomor atom (Z) = jumlah proton (p) = jumlah elektron (e)
Contoh:
Nomor atom = 19
Jumlah proton = 19
Jumlah elektron = 19
3
NOMOR MASSA (A)
Nomor massa = jumlah proton + jumlah neutron
A = p + n
Nomor massa = nomor atom + jumlah neutron
A = Z + n
n = A - Z
A = nomor massa ; Z = nomor atom ; p = proton ; n = neutron
4
Contoh:
Nomor massa (A) = 7
Nomor atom (Z) = 3
Nomor atom = jumlah proton = jumlah elektron = 3
A = Z + n
n = A - Z
Jumlah neutron = nomor massa - nomor atom
= 7 - 3
= 4
5
Multiple Choice
Berdasarkan notasi atom pada gambar, huruf X menunjukkan ...
lambang unsur
nomor massa
nomor atom
konfigurasi elektron
6
Multiple Choice
Berdasarkan notasi atom pada gambar, huruf A menunjukkan ...
nomor atom
nomor massa
lambang unsur
konfigurasi elektron
7
Multiple Choice
Berdasarkan notasi atom pada gambar, huruf Z menunjukkan ...
lambang unsu
nomor massa
nomor atom
konfigurasi elektron
8
Multiple Choice
Nomor massa yang dimiliki oleh unsur Fe adalah...
26
30
56
82
9
Multiple Choice
Nomor atom yang dimiliki oleh unsur Fe adalah...
26
30
56
82
10
Multiple Choice
Pada notasi atom tersebut menunjukkan unsur Br memiliki jumlah elektron sebanyak ...
80
35
50
45
11
Multiple Choice
Pada notasi atom tersebut menunjukkan unsur Br memiliki jumlah proton sebanyak ...
80
35
50
45
12
Multiple Choice
Pada notasi atom tersebut menunjukkan unsur Br memiliki jumlah neutron sebanyak ...
80
35
50
45
NOTASI ATOM
Keterangan:
A = Nomor Massa
Z = Nomor Atom
X = Lambang Unsur
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