Explanation:
Sodium and potassium are in the same group on the periodic table because they both have similar number of valence electrons (1 electron) in their shells
Na = 2,8,1
K = 2,8,8,1
Answer:
Thorium-234 option a .......
Answer:
The basic working principle of a wind turbine is to convert the mechanical energy from the wind into rotational energy at the mill, then the rotation of the mill is used to rotate the generator, which will eventually generate electricity. This tool serves to change the low rotation of the wheel into high rotation.
<em>Balance Chemical Equation:</em>
2H3N(aq) + 3Ca(OH)2(aq) → Ca3N2(aq) + 6H2O(liq)
<em>Explanations:</em>
- According to law of mass of conservation, the chemical equation should be balanced.
- In balance chemical equations, the numbers of same or different atoms in reactants should be equal to the number of different atoms of elements of product side.