I need a answer please tell me and why ?

Fire and ice cubes are examples of matter.

Explanation:

Matter basically means it is made up of atoms, and everything is made up of atoms. So fire and ice cubes would be 2 examples of matter.

What type of matter is fire and how do you know?

Fire doesn't fall into gas, because it doesn't expand in the same way gas does. Fire doesn't fall into a liquid, because it doesn't have a fixed volume. Fire doesn't fall into solid, because it doesn't have a fixed shape. Thus, fire is currently considered plasma. The flame itself is a mixture of gases (vaporized fuel, oxygen, carbon dioxide, carbon monoxide, water vapor, and many other things) and so its matter

What type of matter is an ice cube and how do you know?

It is solid - water gets heated up, the particles of water also heat up, causing it to expand. When you freeze the water, the particles' motion slows down. The attraction within the molecules causes the particles to attract each other, forming a solid bond. This continues throughout the matter and forms a solid. Therefore its matters.

indium, and thallium have three electrons i think

let that person have a turn to speak : )