Cesium, rubidium, and francium could all melt on a hot day. (Cesium and francium in the 80s Fahrenheit and above, and rubidium just over 100oF).
I would most likely use a +1 subscript for the alkali metal and a -1 subscript for the halogen in an ionic compound, as alkali metals typically form ions with a +1 charge and halogens typically form ions with a -1 charge.
Element X would most likely be found in the alkali metal group on the far left of the periodic table.
alkali metals
The alkali metal would have a subscript of +1 while the nonmetal from group 6A would have a subscript of -2 to balance charges.
Lithium is NOT the most active alkali metal. Francium is the most active but is available in such trace quantities and radioactive that for practical purposes it is Cesium that is considered most active.
Rubidium.
because it has the most number of electrons in the alkali metal group
I would most likely use a +1 subscript for the alkali metal and a -1 subscript for the halogen in an ionic compound, as alkali metals typically form ions with a +1 charge and halogens typically form ions with a -1 charge.
An element with a single electron in its highest energy level is likely an alkali metal. Alkali metals like lithium, sodium, and potassium have one electron in their outer energy level, making them highly reactive and likely to form ionic bonds.
No...
Element X would most likely be found in the alkali metal group on the far left of the periodic table.
alkali metals
Francium.
The alkali metal would have a subscript of +1 while the nonmetal from group 6A would have a subscript of -2 to balance charges.
Lithium is NOT the most active alkali metal. Francium is the most active but is available in such trace quantities and radioactive that for practical purposes it is Cesium that is considered most active.
Cs (cesium) is most likely to donate one electron as it is classified as an alkali metal with a single valence electron in its outermost energy level.
Metals cannot 'burn'. Most likely, your 'burning' metal is enriched with other elements that burn. It can melt, it then just melts into liquid metal, then it is still metal.