They’re less reactive, they don’t react quickly with water or oxygen which they resist corrosion.
Answer : true
1. Common knowledge : Go to the right of periodic table, the atomic radius is decreasing
2. Flurine has 9 protons and lithium has 3 protons. you know that the electron is attracted with the centre of the atom, that's why more proton, more 'energy' that attract to the centre and that's why it make the shape of the atom is smaller
Answer:
i can only help with 2 :( atimic mass is: 35.453 and number of electrons is:17
Explanation:
kilograms are the unit that measures mass
Physical, since you are physically changing its appearance