html radio only one checked
snippet in html

html radio button checked

user8904

  <input type="radio" id="huey" name="drone" value="huey"
         checked> 
<!-- https://developer.mozilla.org/en-US/docs/Web/HTML/Element/input/radio-->

html radio only one checked

user6962

<!--Just manke both names equal -->
<input type="radio" name="options" id="1"/>
<input type="radio" name="options" id="2"/>