I believe it's the second option. 2 or more elements joined together such that the elements have lost their individual identity in favour of a new set of properties.
Answer:
I believe it's the lowest portion of the atmosphere
Answer:
true this is correct its your econimically
Low electron affinity and large atomic radius
Metallic character decreases across a period (from left to right) and increases down a group.
Electron affinity increases from left to right within a period. This is caused by the decrease in atomic radius. Electron affinity decreases from top to bottom within a group. This is caused by the increase in atomic radius.
Copper has 29 protons in the nucleus, while Nickel has 28 protons.
