INTI ATOM & R A

INTI ATOM & R A

1st - 5th Grade

25 Qs

quiz-placeholder

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INTI ATOM & R A

INTI ATOM & R A

Assessment

Quiz

Physics

1st - 5th Grade

Practice Problem

Hard

Created by

amilia aminingsih

Used 12+ times

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25 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Manakah yang merupakan contoh Isotop?

(1)
(2)
(3)
(4)

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Berikut ini yang bukan contoh dari isoton adalah

(1)
(2)
(3)
(4)

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Suatu zat radioaktif mempunyai waktu paruh 20 tahun. 25 gram zat itu disimpan selama 60 tahun. Berapakah gram sisanya ….

4,251 gram

2,165 gram

1,135 gram

3,211 gram

3,125 gram

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Suatu zat radioaktif mula-mula menunjukkan keaktifan 2400 dps. Setelah 10 tahun keaktifan­nya menjadi 300 dps. Berapa waktu paruh zat radioaktif itu?

5 tahun

2,5 tahun

7,45 tahun

3,33 tahun

50 tahun

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Isotop 146C adalah zat radioaktif yang menyi­narkan sinar beta. Setelah zat ini melepaskan sinar beta akan dihasilkan ….

a. isotop 126C

b. isotop 147N

c. isotop 168O

d. isotop 136C

e. isotop 146C

isotop 126C

isotop 147N

isotop 168O

isotop 136C

isotop 146C

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Jika suatu unsur radioaktif mempunyai waktu paruh T detik, maka bagian unsur tersebut yang tinggal sesudah 4 T detik adalah ,,,

1/2

1/4

1/8

1/16

1/64

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Massa inti atom helium 4,0026 sma sedangkan massa proton 1,0078 sma dan neutron 1,0086 sma. Defek massa dari inti atom tersebut adalah ,,, sma

2,0474

1,9862

0,0987

0,0302

0,0138

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