The pair of elements that will most likely combine chemically to form ionic bonds are B. Lithium and Chlorine.
They all are made up with something to get their form is how they are all alike. how they are different is on is a solid where is is still an the next is liquid an it is like solid but moves and gas is nothing but like air we breath. hope this helps...
A base and an Acid always react to form a salt and water
So, HCl + NaOH —> NaCl + HOH
Hydrogen H weight: 81
Non-metal
Hydrogen is the simplest element; an atom consists of only one proton and one electron. It is also the most plentiful element in the universe. Despite its simplicity and abundance, hydrogen doesn't occur naturally as a gas on the Earth--it is always combined with other elements.
period 1 group 1
Hydrogen is easily the most abundant element in the universe. It is found in the sun and most of the stars, and the planet Jupiter is composed mostly of hydrogen. On Earth, hydrogen is found in the greatest quantities as water.