Question
Download Solution PDFजर डोबेरायनरच्या त्रिकातील पहिले व तिसरे मूलद्रव्य फॉस्फरस व अँटिमनी असतील, तर या त्रिकातील दुसरे मूलद्रव्य कोणते?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDF- सन 1829 मध्ये डोबेरायनर या शास्त्रज्ञास रासायनिक गुणधर्मामध्ये साम्य असलेल्या काही मूलद्रव्यांचे गट आढळले, त्यांना त्रिके असे म्हटले गेले.
- डोबेरायनरने अशा 3 मूलद्रव्यांच्या अणुवस्तुमानाच्या चढत्या क्रमाने त्रिकामध्ये मांडणी केली. यातील मधल्या मूलद्रव्याचे अणूवस्तुमान हे साधारणतः इतर दोन मूलद्रव्यांच्या अणूवस्तुमानाच्या सरासरीइतके असल्याचे दर्शवले.
|
त्रिके |
मूलद्रव्य – 1 |
मूलद्रव्य – 2 |
मूलद्रव्य – 3 |
|
वास्तविक अणूवस्तुमान (a) |
सरासरी किंवा मध्यमान = (a + c)/2 |
वास्तविक अणूवस्तुमान (c) |
|
|
Li, Na, K |
लिथिअम (Li) |
सोडिअम (Na) |
पोटॅशिअम (K) |
|
6.9 |
(6.9 + 39.1)/2 = 23.0 |
39.1 |
|
|
P, As, Sb |
फास्फरस (P) |
अर्सेनिक (As) |
अँटिमनी (Sb) |
|
30.9 |
(30.9+121.7)/2 = 76.9 |
121.7 |
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