Which statement explains why calcium has a higher melting point than barium?
Calcium cations are smaller than barium cations and have a stronger attraction to the delocalised electrons.
2 )
The structure of calcium is partly giant molecular.
3 )
There are more delocalised electrons in calcium than in barium as it has a lower ionisation energy.
4 )
There is greater repulsion between barium atoms as they have more complete electron shells than calcium atoms.
تحلیل ویدئویی تست
منتظریم اولین نفر تحلیلش کنه!
پرسش و پاسخ های مشابه
سوال کنید یا به سوالات دیگران پاسخ دهید ...