The first part of Dalton's model is that all matter is made of atoms, and these atoms are indivisible.
The second part of this model is that atoms of an element have identical masses and identical propertes.
At last, the third part of Dalton's model is that all compounds are formed by two or more different type of atoms combined.
Answer:
50 because it’s a ratio problem
Explanation:
Alkali metals impart characteristic colours to the flame due to low ionisation enthalpy, when an alkali metal or its salt is heated in a flame, the valence electrons are excited to higher energy level.
Answer:
3 g/cm³
Explanation:
Density= Mass divided by Volume
45÷15= 3
Both in the phase of a liquid & has similar qualities like both molecules.