Answer:
In first shell 2 electrons are present and 7 electrons are present in last shell
Explanation:
C the immigration rate is higher than the emigration rate
Chlorophyll, it is the pigment in plants that absorbs light in photosynthesis
Metals that do not react with acid would be copper, platinum and mercury
1) Option b: gas pressure.
This is sustainted by the kinetic molecular theory of the gases.
2) Option c: raising the temperature of the gas will increase the pressure if the volumen of the gas and the number of particles are constant.
PV = nRT
If V and n are constant, P is proportional to T, then if T increase P will increase too.