Pertanyaan

Tentukan letak atom berikut dalam tabel Periodik ! a. 11 Na b. 24 Cr c. 28 Ni d. 33 As = ( Ar ) 4 s 2 3 d 10 4 p 3 e. 47 Ag f. 53 I

Tentukan letak atom berikut dalam tabel Periodik !

a. $_{11} Na$

b. $_{24} Cr$

c. $_{28} Ni$

d. $_{33} As = (Ar) 4 s^{2} 3 d^{10} 4 p^{3}$

e. $_{47} Ag$

f. $_{53} I$

B. Rohmawati

Master Teacher

Mahasiswa/Alumni Universitas Negeri Semarang

Jawaban terverifikasi

Jawaban

jawaban sesuai dengan uraian di atas.

Pembahasan

Jumlah kulit menunjukkan periode sedangkan elektron valensi menunjukkan golongan suatu unsur. a. , Konfigurasi elektron: Periode : 3; Golongan : IA b. , Konfigurasi elektron: Periode : 4; Golongan : VIB c. , Konfigurasi elektron: Periode : 4; Golongan : VIIIB d. Periode : 4; Golongan : VA e. , Konfigurasi elektron: Periode : 5; Golongan : IB f. , Konfigurasi elektron: Periode : 5; Golongan : VIIA Jadi, jawaban sesuai dengan uraian di atas.

Jumlah kulit menunjukkan periode sedangkan elektron valensi menunjukkan golongan suatu unsur.

a. Na presubscript 11 presuperscript blank , Konfigurasi elektron: 1 s squared space 2 s squared space 2 p to the power of 6 3 s to the power of 1 space atau space open square brackets Ne close square brackets 3 s to the power of 1

Periode : 3; Golongan : IA

b. Cr presubscript 24 presuperscript blank , Konfigurasi elektron: 1 s squared 2 s squared 2 p to the power of 6 3 s squared 3 p to the power of 6 3 d to the power of 5 4 s to the power of 1 atau space open square brackets Ar close square brackets space 3 d to the power of 5 space 4 s to the power of 1

Periode : 4; Golongan : VIB

c. Ni presubscript 28 presuperscript blank , Konfigurasi elektron: 1 s squared 2 s squared 2 p to the power of 6 3 s squared 3 p to the power of 6 3 d to the power of 8 4 s squared space atau open square brackets Ar close square brackets space 3 d to the power of 8 space 4 s squared

Periode : 4; Golongan : VIIIB

d. As presubscript 33 presuperscript blank equals open parentheses Ar close parentheses 4 s squared space 3 d to the power of 10 space 4 p cubed

Periode : 4; Golongan : VA

e. Ag presubscript 47 presuperscript blank , Konfigurasi elektron: 1 s squared 2 s squared 2 p to the power of 6 3 s squared 3 p to the power of 6 3 d to the power of 10 4 s squared 4 p to the power of 6 4 d to the power of 10 5 s to the power of 1 space atau open square brackets Kr close square brackets space 4 d to the power of 10 space 5 s to the power of 1

Periode : 5; Golongan : IB

f. I presubscript 53 presuperscript blank , Konfigurasi elektron: 1 s squared 2 s squared 2 p to the power of 6 3 s squared 3 p to the power of 6 3 d to the power of 10 4 s squared 4 p to the power of 6 4 d to the power of 10 5 s squared 5 p to the power of 5 space atau space open square brackets Kr close square brackets space 4 d to the power of 10 space 5 s squared space 5 p to the power of 5

Periode : 5; Golongan : VIIA

Jadi, jawaban sesuai dengan uraian di atas.