by making sure they are in the lowest ratio. by adding them to see if they total 100. by checking that they are whole-number multiples. by dividing them by the molar mass.
The elements of group 1 makes ionic bond with the elements of group 7 due to high difference of electronegativity values.
<h3>Type of bond between group 1 and 7</h3>
The elements of first group lose its one outermost electrons while on the other hand, the elements of seven group needs one electron so they gain that one electron so they make an ionic bond with each other.
So we can conclude that the elements of group 1 makes ionic bond with the elements of group 7 because of the high difference of electronegativity values.
Learn more about electronegativity here: brainly.com/question/2415812
Answer: 5 protons 6 neutrons and 5 electrons. and atomic number is 5.
Hope this helps!
