Answer:
Hydrogen(H2), Nitrogen(N2), Oxygen(O2), Chlorine(Cl2), Bromine(B2), and Iodine(I2), all have two atoms each in their molecules. So, the atomicity of hydrogen, nitrogen, oxygen, chlorine, bromine and iodine is 2 each.
Explanation:
Hope this answer helped you! If it helped pls mark me as the Brainliest...
Sr is below Ca and to the right of Rb in the Periodic Table (see the attached image).
Reactivity increases from <em>top to bottom of a Group</em>. Sr is below Ca, so it is <em>more reactive</em> than Ca.
Reactivity decreases from <em>left to right in a Period</em>. Sr is to the right of Rb, so it is <em>less reactive</em> than Rb.
Answer:
Teorema general de la hidrostática
Todo cuerpo sumergido total o parcialmente en un fluido experimenta un empuje hacia arriba igual al peso del fluido (gas o líquido) desalojado
Explanation:
It's the second one. cause u have to add