-->

Sistem Periodik Unsur : 30 Contoh Soal Sistem Periodik Unsur dan Pembahasanya

hpk
250x250
Hello Sobat ! Salam Chemistry !! Pada kesempatan kali ini kita akan membahas mengenai contoh soal sistem periodik unsur yang mana materi mengenai sistem periodik unsur merupakan materi yang sangat penting dalam Ujian Nasional sehingga kita wajib membahasnya. Disini kita juga akan belajar menentukan letak unsur dalam sistem periodik, menyelesaikan soal konfigurasi elektron, dan juga menyelesaikan soal bilangan kuantum. Selamat Mengerjakan !

1. Diketahui nomor atom unsur A adalah 20. Bagaimanakah konfigurasi elektron ion A2+ tersebut ?

Jawaban : 1s2 2s2 2p6 3s2 3p6
 
Pembahasan :
 
20 A : 1s2 2s2 2p6 3s2 3p 6 4s2
20 A+2 : 1s2 2s2 2p6 3s 2 3p6 atau [Ar]

2. Diketahui nomor atom unsur E adalah 31. Bagaimanakah konfigurasi elektron ion E3+ tersebut?

Jawaban : 1s2 2s2 2p6 3s2 3p6 3d10 atau [Ar] 3d10
 
Pembahasan :
 
31 E : 1s2 2s2 2p6 3s2 3p 6 4s2 3d10 4p1
31 E3+ : 1s2 2s2 2p6 3s 2 3p6 3d10 atau [Ar] 3d10
 
3. Diketahui nomor atom unsur M adalah 34. Bagaimanakah konfigurasi elektron ion M2- tersebut?

Jawaban : 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 atau [Kr] 
 
Pembahasan :
 
34 M : 1s2 2s2 2p6 3s2 3p 6 4s2 3d10 4p4
34 M2- : 1s2 2s2 2p6 3s 2 3p6 4s2 3d10 4p6 atau [Kr]

4. Diketahui nomor atom unsur X adalah 17. Bagaimanakah konfigurasi elektron ion X- tersebut?


Jawaban : 1s2 2s2 2p6 3s2 3p6 atau [Ar]
 
Pembahasan :
 
17 X : 1s2 2s2 2p6 3s2 3p 5
17 X- : 1s2 2s2 2p6 3s 2 3p6 atau [Ar]

5. Jika diketahui ion X2+ memiliki 10 elektron dan 12 neutron. Maka berapakah nomor massa atom X tersebut?

Jawaban : 24
 
Pembahasan :
 
Elektron X = Elektron X2+ + Muatan Nomor Massa X = Proton X + Neutron
Elektron X = 10 + 2 Nomor Massa X = 12 + 12
Elektron X = Proton X = 12 Nomor Massa X = 24

6. Jika diketahui ion A- memiliki 18 elektron dan 18 neutron. Maka berapakah nomor massa atom A tersebut?

Jawaban : 35
 
Pembahasan :
 
Elektron A = Elektron A- - Muatan Nomor Massa A = Proton A + Neutron
Elektron A = 18 - 1 Nomor Massa A = 17 + 18
Elektron A = Proton A = 17 Nomor Massa A = 35

7. Jika diketahui ion M+3 memiliki 19 elektron dan 26 neutron. Maka berapakah nomor massa atom M tersebut?

Jawaban : 48
 
Pembahasan :
 
Elektron M = Elektron M3++ Muatan Nomor Massa M = Proton M+Neutron
Elektron M = 19 + 3 Nomor Massa M = 22 + 26
Elektron M = Proton M = 22 Nomor Massa M = 48

8. Jika diketahui ion E3+ memiliki 18 elektron dan 24 neutron . Maka berapakah nomor massa unsur E tersebut?

Jawaban : 45
 


Pembahasan :
 
Elektron E = Elektron E3+ + Muatan Nomor Massa E = Proton E + Neutron
Elektron E = 18 + 3 Nomor Massa E = 21 + 24
Elektron E = Proton E = 21 Nomor Massa E = 45

9. Jika diketahui unsur A3+ memiliki 12 elektron, maka dimanakah letak unsur A pada tabel periodik?

Jawaban : Golongan VA , periode 3
 
Pembahasan :
 
A3+ : 1s2 2s2 2p6 3s 2
A : 1s2 2s2 2p6 3s2 3p3
 
Golongan VA, periode 3

10. Jika diketahui unsur X3+ memiliki 28 elektron , maka dimanakah letak unsur X pada tabel periodik?

Jawaban : Golongan IIIA,periode 4
 
Pembahasan : 
 
X3+ : [Ar] 3d10
X : [Ar] 3d10 4s2 4p1
 
Golongan IIIA , periode 4

Selanjutnya > Soal No 11-20
300x600
the cheapest car insurance cost of car insurance best car insurance quotes insurance auto insurance quotes car get car insurance quotes online car insurance agent instant car insurance quote car insurance websites direct car insurance insure a car motor car insurance quote cheap car insurance online quotes for car insurance car insurers commercial car insurance motor insurance quote car insurance quotes online get a quote online international health insurance compare car insurance quotes insurance for car compare car insurance car insurance buy life insurance online compare auto insurance international medical insurance general car insurance cheap motor insurance low car insurance car insurance comparison company car insurance budget car insurance private health insurance online quote car insurance cheap motor car insurance car insurance for new drivers cheap car insurance quotes online online car insurance quotes get car insurance quotes car insurance quotes comparison motor car insurance car insurance quotes car insurance cheap comprehensive car insurance best auto insurance short term health insurance motor insurance cheap online car insurance online motor insurance quotes car insurance california buycarinsurance online vehicle insurance free car insurance quotes landlord insurance health insurance for children motorbike insurance monthly car insurance car insurance usa car insurance reviews car insurance renewal quotes vehicle insurance health insurance rates term life insurance quotes vehicle insurance quotes car insurance compare motor vehicle insurance best car insurance motor insurance online quote car insurance online quote life insurance online supplemental health insurance best car insurance rates car insurance discounts motor vehicle insurance quotes auto insurance cheap travel insurance bike insurance travel medical insurance buy car insurance online online motor insurance travel insurance quote get a quote for car insurance health insurance agent car insurance companies cheap car insurance companies travel insurance annual travel insurance commercial vehicle insurance permanent life insurance medical insurance quotes online car insurance cheap car insurance quotes car insurance online quote insurance online level term life insurance health insurance comparison how much is car insurance travel health insurance pet health insurance quotes on cars health ins travel insurance uk quote for car insurance get insurance quote online disability insurance quote temporary health insurance temporary insurance rental car insurance cheap health insurance auto insurance compare third party car insurance buy health insurance auto insurance quotes cheap insurance companies best term life insurance personal health insurance online quote insurance car insurance premium health insurance policies quotes for cars whole life insurance credit insurance cheap van insurance cheap term life insurance cheap motorcycle insurance compare life insurance car insurance cover health insurance motorcycle insurance short term car insurance health insurance coverage insurance qoute cheap life insurance house insurance quote car insurance uk health insurance companies cigna health insurance cheap insurance cheap car insurance uk compare health insurance car insurance for young drivers short term insurance online health insurance caravan insurance life insurance comparison direct insurance health insurance plans motor insurance online car insurance estimator accident insurance home insurance quotes nj car insurance new car insurance private medical insurance home insurance car insurance brokers car insurance rates commercial insurance health insurance quotes motor insurance companies which car insurance car quotes online online auto insurance flood insurance cheap auto insurance quotes car insurance agencies business health insurance term life insurance truck insurance professional indemnity insurance life insurance car insurance policy long term care insurance drive insurance buy insurance car ins motorcycle insurance quote critical illness insurance term insurance student health insurance home insurance comparison insurance rates insurance cover holiday insurance insurance sites online vehicle insurance quotes company website home insurance rates compare insurance buy insurance online affordable medical insurance car insurance coverage product liability insurance home contents insurance buy life insurance renters insurance group health insurance family health insurance motor insurance quote online mortgage insurance best home insurance personal insurance medical insurance property insurance life insurance agent group insurance aetna health insurance cheap medical insurance liability insurance rental insurance life insurance policy group life insurance general liability insurance insurance quotes online all car insurance companies best health insurance insurance plans life insurance for seniors van insurance website quote universal life insurance building insurance co insurance insurance car car insurance prices disability insurance insurance vehicle cheap vehicle insurance senior life insurance medical insurance plans insurance health house insurance life insurance quotes car quotes cheap home insurance

0 Response to "Sistem Periodik Unsur : 30 Contoh Soal Sistem Periodik Unsur dan Pembahasanya"

Post a Comment

Apakah Sobat Masih Bingung ? Jangan Malu-Malu Sampaikan Saja Keluh Kesah Sobat Di Kolom Komentar !

Iklan Atas Artikel

Iklan Tengah Artikel 1

Iklan Tengah Artikel 2

Iklan Bawah Artikel

close
[ klik disini 2X ] [ close ]