Write the symbols for the ions that form when potassium and iodine react to form the ionic compound potassium iodide?

Idon’t know how to solve this question

One does not belong why? ice, gold ,wood ,diamond and table salt

Select the correct answer from each drop-down menu.describe what happens to a carbon-11 atom when it undergoes positron emission.the decay of a carbon-11 atom _1_, and this causes it to emit _2_.options for 1: > changes a neutron into a proton> changes a proton into a neutron> is hit with a neutron> reconfigures its protons and neutronsoptions for 2: > a negatively charged electron-sized particle> a positively charged election-sized particle> two atoms and several neutrons> two neutrons and two protons