If easily means at low temperatures then no, ionic compounds generally have a higher melting point than most compounds except for those with hydrogen bonding and network covalent bonding which have higher melting points generally.
aluminium is used for making electrical cables as the metal do not melt easily
Yes, if the metals are heated up enough to melt.
you can melt a metalloid
That depends on the metal: mercury is already liquid at room temperature, gallium will melt in your hand, many alloys will melt in hot water, but other metals do have to be heated to thousands of degrees before they melt.
Plenty of metals have high enough melting points that they would not melt in lava.
Some metals that melt easily at low temperatures include gallium, cesium, and mercury.
Yes it can 'melt' metals.
aluminium is used for making electrical cables as the metal do not melt easily
All the alkali metals will melt.
No
It does not melt metal.
Yes, if the metals are heated up enough to melt.
When you get to a high enough temperature.
you can melt a metalloid
That depends on the metal: mercury is already liquid at room temperature, gallium will melt in your hand, many alloys will melt in hot water, but other metals do have to be heated to thousands of degrees before they melt.
asbestos
Non-metals.