Please help if you can (chem)

because of all the things that happen around the us, many people get into arguments which sadly could get physical, but we should actually make a change for that.

o conteúdo de calor de um sistema é igual à entalpia apenas para um sistema que é constante

b) nuclear ive learned that in a pedtrodic table

the seeing the electronic configuration we can say that the element is fluorine.

fluorine is the most electronegative element in the periodic table.

but by only seeing the configuration we cannot say about its reactivity because we don't know if its configuration after excitation or by addition of electrons.

but if not then, it is the lightest halogen and exists as a highly toxic pale yellow diatomic gas at standard conditions. as the most electronegative element, it is extremely reactive: almost all other elements, including some noble gases, form compounds with fluorine.