Answer: A
Aloha is the one that loses a helium
Answer is: the atom is the smallest known particle of matter.
John Dalton claimed that atom is indestructible and a<span>ll atoms of a given element are identical in mass and properties.
</span>Thomson discovered electron and found the first evidence for isotopes<span> of a stable element.</span>
Answer:
2.5 mol Cl2 will react with 5 mol Na.
Explanation:
