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Group 1 and Group7 - Coggle Diagram
Group 1 and Group7
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Atomic size
Atomic size is increasing as we go down a group because atomic radii increases. As we go down a group, the number of shells are increasing and the force of attraction between nucleus and outermost shell decrease.
Density and reactivity
Density and reactivity increases as we go down a group. As atomic radii increases, and number of shells are increasing this cause the volume increasing and density is increasing as we go down a group.(Density= Mass/Volume) So the force of attraction is decreasing. (Except Sodium and Potassium because Potassium is less than Sodium) The Reactivity is increasing because the size of atom increases and the force of attraction between the nucleus and outermost shell is decreasing and this cause the reactivity increase and move quickly and changes to gas to liquid.
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Density and Reactivity
The Density is increasing as we go down the group. As the atomic radii increases, and number of electron shells are increasing. This causes the mass and volume increases and that effects to density increases. The force of attraction is decreasing. The reactivity is decreasing as we go down a group. As group 7 are non metals and they wants to gain an electrons. As we go down in group 7 the atomic radii increases, and distance between the nucleus and valence shell also increases, however the force of attraction is decreases as we go down in a group7, so it is difficult to gain an electrons.
Atomic size
Atomic size is Decreasing as we move left to right because atomic radii decreases. As we move left to right in row, The number of protons and electrons increases and the force of attraction between the proton and electron increases, then shell shrinks toward to nucleus.