1. Electrical conductivity. Electric current is the flow of electrons in a wire. In metals, the outer electrons of the atoms belong to a cloud of delocalised electrons. They are no longer firmly held by a specific atom, but instead they can move freely through the lattice of positive metal ions. Normally they move randomly.
the BET and the BPT determined to be due by the due date of the tax. Do not file an extension if no tax is due. If you need to make an additional payment in order to have paid 100% of the taxes determined to be due, then you may file your payment online at
Events or timelines may change. Unless otherwise stated, the due dates provided are for 30 June balancers only. When a due date falls on a Saturday, Sunday or public holiday, you can lodge or pay on the next business day. The payment due dates for a tax return are determined by client type, the lodgment due date and when the return is lodged. Key lodgment and payment dates for 2017â18, arranged by month. Last modified: 30 Jun 2017 QC 34594