| ⇦ | 
| ⇨ |
Boron has two stable isotopes, ¹°B(19%) and ¹¹B(81%). Average atomic weight for boron in the periodic table is
Options
(a) 10.8
(b) 10.2
(c) 11.2
(d) 10
Correct Answer:
10.8
Explanation:
Avg Atomic Mass = (RA1 x MN1 + RA2 x MN2) / (RA1+ RA2)
Where RA= Relative Abundance, MN= Mass Number
= 19 x 10 + 81 x 11 / 100 = 10.81
Related Questions: - In solid ice, oxygen atom is surrounded
- Which of the following atomic number of uranium is the most radioactive
- Li occupies higher position in the electrochemical series of metals as compared
- In the case of alkali metals, the covalent character decreases in the order
- Which of the following does not acts as Lewis acid
Question Type: Memory
(964)
Difficulty Level: Easy
(1008)
Topics: Basic Concepts of Chemistry
(94)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- In solid ice, oxygen atom is surrounded
- Which of the following atomic number of uranium is the most radioactive
- Li occupies higher position in the electrochemical series of metals as compared
- In the case of alkali metals, the covalent character decreases in the order
- Which of the following does not acts as Lewis acid
Question Type: Memory (964)
Difficulty Level: Easy (1008)
Topics: Basic Concepts of Chemistry (94)
Subject: Chemistry (2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
18000+ students are using NEETLab to improve their score. What about you?
Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.
Share this page with your friends
Leave a Reply