Hợp chất hidrua (<span class="MathJax_Preview" style="color: inherit;"><span class="MJXp-math" id="MJXp-Span-1"><span class="MJXp-mstyle" id="MJXp-Span-2"><span class="MJXp-mi MJXp-italic" id="MJXp-Span-3">R</span><span class="MJXp-msubsup" id="MJXp-Span-4"><span class="MJXp-mi MJXp-italic" id="MJXp-Span-5" style="margin-right: 0.05em;">H</span><span class="MJXp-mrow MJXp-script" id="MJXp-Span-6" style="vertical-align: -0.4em;"><span class="MJXp-mn" id="MJXp-Span-7">4</span></span></span></span></span></span><script type="math/tex" id="MathJax-Element-1">\Large RH_{4}</script>) của các nguyên tố nhóm cacbon được s