Which is a correct trend down Group 7 from fluorine to iodine?
1 )
The boiling point of the element decreases.
The oxidising ability of the element decreases.
3 )
The electronegativity of the atom increases.
4 )
The first ionisation energy of the atom increases.
تحلیل ویدئویی تست
منتظریم اولین نفر تحلیلش کنه!