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থিম নির্বাচন

আপনার পছন্দের থিম বেছে নিন।

নিম্নে প্রদত্ত জোড়গুলির মধ্যে কোনগুলি আইসোটোপ ?

A. X2457 , X2456&#
B. X3470 , X3370&# </label> </span> </span> </div> </div> <!--end::option 2--> <!--begin::option 3--> <div class="col-md-6"> <div class="text-dark fs-4 "> <span class="d-flex"> <span class="me-2"> <i class="fas fa-dot-circle text-dark"></i> </span> <span class="overflow-auto scroll-bar-none"> <label for="kkradio_option3_222013">none </label> </span> </span> </div> </div> <!--end::option 3--> <!--begin::option 4--> <div class="col-md-6"> </div> <!--end::option 4--> <!--begin::option 5--> <!--end::option 5--> </div> <div class="px-0 overflow-auto scroll-bar-none" style="margin-left: -4px;"> <a href=" https://sattacademy.com/admission?categories%5B%5D=97 "> <span class="badge badge-light fs-7 mb-0 mt-3 text-dark fw-normal text-hover-primary">রাজশাহী বিশ্ববিদ্যালয়</span> </a> <a href=" https://sattacademy.com/admission/mcq/h-%E0%A6%87%E0%A6%89%E0%A6%A8%E0%A6%BF%E0%A6%9F-2013-2014/all "> <span class="badge badge-light fs-7 mb-0 mt-3 text-dark fw-normal text-hover-primary">H ইউনিট : 2013-2014</span> </a> <a href=" https://sattacademy.com/admission/subject/mcq/sid=76 "> <span class="badge badge-light fs-7 mb-0 mt-3 text-dark fw-normal text-hover-primary">রসায়ন</span> </a> <a href=" https://sattacademy.com/admission/%E0%A6%AE%E0%A7%8C%E0%A6%B2%E0%A7%87%E0%A6%B0-%E0%A6%A4%E0%A7%87%E0%A6%9C%E0%A6%B8%E0%A7%8D%E0%A6%95%E0%A7%8D%E0%A6%B0%E0%A6%BF%E0%A7%9F%E0%A6%A4%E0%A6%BE-%E0%A6%93-%E0%A6%A4%E0%A7%87%E0%A6%9C%E0%A6%B8%E0%A7%8D%E0%A6%95%E0%A7%8D%E0%A6%B0%E0%A6%BF%E0%A7%9F-%E0%A6%86%E0%A6%87%E0%A6%B8%E0%A7%8B%E0%A6%9F%E0%A7%8B%E0%A6%AA "> <span class="badge badge-light fs-7 mb-0 mt-3 text-dark fw-normal text-hover-primary">মৌলের তেজস্ক্রিয়তা ও তেজস্ক্রিয় আইসোটোপ</span> </a> </div> </div> <div class="card-footer py-2 px-0 mx-0 mx-md-2 my-0"> <div class="d-flex justify-content-between align-items-center"> <div class="description"> <span class="fs-7 fw-bold text-black text-hover-primary cursor-pointer show-des"> <a href="javascript:void(0)" class="me-2 px-4 fw-bolder d-flex align-items-center gap-2 text-primary" data-id="222013"> Des <i class="fas fa-caret-right fa-2xl text-primary" style="font-size: 12px; transform:rotate(90deg)"></i> </a> </span> </div> <div class="activity"> <div class="d-flex align-items-center justify-content-end flex-wrap"> <span class="me-7 me-md-10 fs-7 fw-bolder custom-text-gray" style="cursor:default" > <i class="fas fa-eye fs-7 me-1"></i> 6.9k </span> <a href="javascript:void(0)" class="share pe-4"> <i class="fas fa-share-alt text-primary fs-7"></i> </a> </div> </div> </div> <div class="all-description"> <div class="row mb-1 mt-3"> <div class="mb-3 px-6 position-relative description-parent-div"> <div class="text-dark fs-4 mb-3 bg-light rounded "> <span class="badge badge-success sa-bg-success rounded-0 rounded-start rounded-bottom-0 text-black fs-3 fw-normal"><i class="fas fa-check-circle text-dark me-1 fs-4 me-2"></i>Best Ans:</span> <div class="px-3 pt-5 text-dark fs-2"> <h3 class="d-flex gap-2">প্রশ্ন: নিম্নে প্রদত্ত জোড়গুলির মধ্যে কোনগুলি আইসোটোপ ?</h3> <p><strong>আইসোটোপ</strong> ➞ প্রোটন সংখ্যা সমান কিন্তু ভরসংখ্যা ভিন্ন<br><strong>আইসোবার</strong> ➞ প্রোটন সংখ্যা অসমান কিন্তু ভরসংখ্যা সমান<br><strong>আইসোটোন</strong> ➞ নিউট্রন সংখ্যা সমান কিন্তু প্রোটন সংখ্যা অসমান<br><strong>আইসোমার</strong> ➞ পরমাণু সংখ্যা এক কিন্তু পরমাণু বিন্যাস ভিন্ন</p> </div> </div> <div class="d-flex align-items-center justify-content-between mb-3"> <div class="fs-7 fw-bold"> <span class="text-muted fs-9">2 years ago</span> </div> <div> <a href="javascript:void(0)" class=" description-like me-10 me-md-15" data-description_id="94575" data-btntype="like" data-vote_id=""> <i class="fas fa-thumbs-up fs-7 "></i><span class="des-like text-dark fs-7 fw-bold ms-2">0</span> </a> <a href="javascript:void(0)" class=" description-like me-10 me-md-15" data-description_id="94575" data-btntype="dislike" data-vote_id=""> <i class="fas fa-thumbs-down fs-7 "></i><span class="des-like text-dark fs-7 fw-bold ms-2">0</span> </a> </div> </div> <div class="d-flex align-items-center pe-2"> <a href="https://sattacademy.com/user/u&amp;id=42061/profile" class=""> <div class="symbol symbol-30px symbol-circle me-3 user-statistics" data-id="42061"> <img src="https://sattacademy.com/uploads/avatar/1674727312.jpg" class="toolbar-img" alt=""> </div> </a> <div class="fs-5 fw-bold"> <a href="https://sattacademy.com/user/u&amp;id=42061/profile" class="text-gray-700 text-hover-primary"> Shakib Al Hasan </a> </div> </div> <hr> </div> </div> </div> </div> </div> </div> </div> <div class="row mb-10 bbbb "> <div class="col-md-12"> <div class="card card-bordered"> <div class="d-flex align-items-center justify-content-between rounded-top sa-bg-success py-3 px-5"> <h2 class=""> <a href=" https://sattacademy.com/admission/%E0%A6%B0%E0%A6%B8%E0%A6%BE%E0%A7%9F%E0%A6%A8 "class="text-dark"> রসায়ন </a> </h2> </div> <div class="card-body p-3" id="toggle-div" style="text-align: justify; display: block;"> <div class="parent-div"> <div class="fw-semibold mb-4 px-2 fs-5 text-dark"> <span class="text-dark">**'Provide valuable content and get rewarded! 🏆✨** <br> Contribute high-quality content, help learners grow, and earn for your efforts! 💡💰' </span> </div> <a href=" https://sattacademy.com/subject/s_id=76/add-content " class="btn btn-sm btn-active-color-primary ms-4 fs-6 px-3 py-2" data-id="76" style="border: 1px solid #cfcfcf61"> <i class="fas fa-plus-square fs-3 me-1" style="color: #2891f4"></i> Content </a> </div> <div class="d-flex flex-column flex-md-row align-items-start align-items-md-center justify-content-md-between justify-content-start mt-5 position-relative description-parent-div"> </div> </div> </div> </div> </div> </div> <div class="card" style=""> <div class="card-body p-7"> <div class="d-flex flex-column flex-lg-row"> <div class="flex-column flex-lg-row-auto w-100"> <div class="mb-15"> <div class="sidebar-title mb-3"> <h4 class="text-dark text-uppercase">Related Question</h4> </div> <div class="mb-7" style=" height: 2px; background-color: #ccc;"></div> <div class="menu menu-column menu-state-title-primary fs-6 fw-bold"> <div class="menu-item mb-2"> <a href="https://sattacademy.com/admission/single-question?ques_id=240713" class="menu-link text-dark py-3 d-block"> <p>অক্সিজেনে কতটি আইসোটোপ পাওয়া যায়?</p></a> </div> <div class="menu-item mb-2"> <a href="https://sattacademy.com/admission/single-question?ques_id=83712" class="menu-link text-dark py-3 d-block"> ক্যান্সার চিকিৎসায় কোন তেজস্ক্রিয় মৌল ব্যবহৃত হয় ?</a> </div> <div class="menu-item mb-2"> <a href="https://sattacademy.com/admission/single-question?ques_id=203777" class="menu-link text-dark py-3 d-block"> <math xmlns="http://www.w3.org/1998/Math/MathML"><mi>&#x3B1;</mi><mo>,</mo><mo>&#xA0;</mo><mi>&#x3B2;</mi><mo>,</mo><mo>&#xA0;</mo><mi>&#x3B3;</mi></math> রশ্মি তেজক্রিয় পদার্থ হতে বের হয়-</a> </div> <div class="menu-item mb-2"> <a href="https://sattacademy.com/admission/single-question?ques_id=234769" class="menu-link text-dark py-3 d-block"> কোনটি আইসোটোপ নয়?</a> </div> <div class="menu-item mb-2"> <a href="https://sattacademy.com/admission/single-question?ques_id=121611" class="menu-link text-dark py-3 d-block"> নিচের কোন মৌলটি তেজস্ক্রিয় নয়-</a> </div> <div class="menu-item mb-2"> <a href="https://sattacademy.com/admission/single-question?ques_id=210445" class="menu-link text-dark py-3 d-block"> নিচের কোন জোড়টি আইসোটোন?</a> </div> </div> </div> <div class="mb-0"> <div id="sidebar-promotion-content"></div> </div> </div> </div> </div> </div> </div> <div class="col-md-4"> <div class="card" style=""> <div class="card-body p-7"> <div class="d-flex flex-column flex-lg-row"> <div class="flex-column flex-lg-row-auto w-100"> <div class="mb-15"> <div class="sidebar-title mb-3"> <h4 class="text-dark text-uppercase">Related Question</h4> </div> <div class="mb-7" style=" height: 2px; background-color: #ccc;"></div> <div class="menu menu-column menu-state-title-primary fs-6 fw-bold"> <div class="menu-item mb-2"> <a href="https://sattacademy.com/admission/single-question?ques_id=240713" class="menu-link text-dark py-3 d-block"> <p>অক্সিজেনে কতটি আইসোটোপ পাওয়া যায়?</p></a> </div> <div class="menu-item mb-2"> <a href="https://sattacademy.com/admission/single-question?ques_id=83712" class="menu-link text-dark py-3 d-block"> ক্যান্সার চিকিৎসায় কোন তেজস্ক্রিয় মৌল ব্যবহৃত হয় ?</a> </div> <div class="menu-item mb-2"> <a href="https://sattacademy.com/admission/single-question?ques_id=203777" class="menu-link text-dark py-3 d-block"> <math xmlns="http://www.w3.org/1998/Math/MathML"><mi>&#x3B1;</mi><mo>,</mo><mo>&#xA0;</mo><mi>&#x3B2;</mi><mo>,</mo><mo>&#xA0;</mo><mi>&#x3B3;</mi></math> রশ্মি তেজক্রিয় পদার্থ হতে বের হয়-</a> </div> <div class="menu-item mb-2"> <a href="https://sattacademy.com/admission/single-question?ques_id=234769" class="menu-link text-dark py-3 d-block"> কোনটি আইসোটোপ নয়?</a> </div> <div class="menu-item mb-2"> <a href="https://sattacademy.com/admission/single-question?ques_id=121611" class="menu-link text-dark py-3 d-block"> নিচের কোন মৌলটি তেজস্ক্রিয় নয়-</a> </div> <div class="menu-item mb-2"> <a href="https://sattacademy.com/admission/single-question?ques_id=210445" class="menu-link text-dark py-3 d-block"> নিচের কোন জোড়টি আইসোটোন?</a> </div> </div> </div> <div class="mb-0"> <div id="sidebar-promotion-content"></div> </div> </div> </div> </div> </div> </div> </div> </div> </div> <!--begin::Modal - Bookmark modal--> <div class="modal fade" id="kk_modal_new_bookmark" tabindex="-1" aria-hidden="true"> <!--begin::Modal dialog--> <div class="modal-dialog modal-dialog-centered mw-600px"> <!--begin::Modal content--> <div class="modal-content rounded"> <!--begin::Modal header--> <div class="modal-header pb-0 border-0 justify-content-end"> <!--begin::Close--> <div class="btn btn-sm btn-icon btn-active-color-primary" data-bs-dismiss="modal"> <!--begin::Svg Icon | path: 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C.
D.
সঠিক উত্তরঃ A. X2457 , X2456&#
Explanation: