John Dalton in d year 1808 proposed d atomic theory..
1.All elements are made up of small, indivisble particles called atoms.
2.Atoms can neither be created nor destroyed.
3.Atoms of d same element are alike in every aspect, &differ from atoms of all other elements.
4. When atoms combine with other atoms, they do so in simple ratios.
<h2>Answer: 0.00925 mol
</h2>
Explanation:
Moles = # of molecules ÷ Avogadro's Number
= (5.57 × 10²¹ molecules) ÷ (6.022 × 10²³ molecules/mol)
= 0.00925 mol
<h3>∴ the 5.57 x 10²¹ molecules of carbon dioxide ≡ 0.00925 mol</h3>
According to Pauli's exclusion principle, the energy levels of the subshells should be arranged in an increasing manner. The energy of each subshell can be computed. In the sequence, the given subshells are arranged in a correct order. 30p allows 6 electrons at maximum so this configuration is considered as ground state
I believe it’s C , People are burning too many fossil fuels .
Answer:
Isotopes have the same number of protons but a different number of neutrons.
Explanation: