No, lead is more dense than aluminium.
At "normal" temperatures, Mercury is denser than any of those substances ... slightly more so than lead, somewhat more so than copper, and a lot more so than aluminium.
Aluminum is the lighter than mercury.
no
Aluminium. Zinc is around two and a half times heavier (more dense) than Aluminium.
Magnesium is lighter. As long as it's also strong enough it can lead to a lighter end product.
Aluminum is actually lighter than titanium
It depends on what substance you are measuring, 383feet3 of feathers will be a lot lighter than 383feet3 of lead
Aluminum is lighter than most other metals.
No. 100 lead atoms are several times heavier than 100 aluminum atoms.
Carbon fiber would be lighter than the same structural rigidity in aluminum
Aluminum would be lighter weight than stainless steel.
Sure, no problem there. They wouldn't be a particularly good choice though, as they'd be a lot lighter than lead bullets. Lighter means they'll slow down faster. You get less range and less penetration from the weapon.