A casualty is the damage, destruction, or loss of property resulting from an identifiable event that is sudden, unexpected, or unusual. 1  A sudden event is one that is swift, not gradual or progressive. 2  An unexpected event is one that is ordinarily unanticipated and unintended.
exists and is an alternate of . The noble gas notation is a notation formed as a result of the electron configuration notation being used in conjunction with noble gases. The noble gas preceding the element in question is written then the electron configuration is continued from that point onwards. The notation is shorter to write and makes it easier to identify elements.
Hi Listen to Jenny Bee as she has the right answers. You count and record from the previous noble gas to get the correct noble gas configuration. As a double check the sum of electron configuration e.g. For Phosphorus-Neon has a value of 10 (as per periodic table) so 10 + 2 + 3 = 15. The atomic number of phosphorus is 15 so this is correct. Check the others and you will find that Jenny is correct.