Answer:
Atomic number 29
Atomic mass 63.546 g.mol -1
Electronegativity according to Pauling 1.9
Density 8.9 g.cm-3 at 20°C
Melting point 1083 °C
Answer:
Matter is a physical substance that contains mass. A substance is a particular kind of matter with uniform chracteristics.
Explanation:
Remeber that matter is anything that has mass and takes up space :)
Answer:
It's false
Explanation:
Mixtures are always combinations of the same compounds that are at different states.
Answer:
kinetic energy decreases
Explanation:
kinetic energy usually increases when hot and decreases when cold. The steam is turning into a liquid because it is cooling down, causing the molecules to move less and slow down.
Answer: option c an electron has a negative charge and is located outside the nucleus revolving in circular path
