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11111nata11111 [884]
3 years ago
15

One isotope of a non metallic element has a mass number of 127 and 74 neutrons whats the symbol

Chemistry
2 answers:
sleet_krkn [62]3 years ago
8 0

Answer: Iodine

Explanation: When you subtract 127 by 74, you find out the atomic number (number of protons) and then simply check your periodic table which gives shows Iodine with an atomic number of 53 and an atomic mass of 126.90 which rounds to 127.

Svetach [21]3 years ago
4 0

Answer:

Iodine

Explanation:

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2) The same cation Li , so wrong statement.

3)</span>The same cation Na , so wrong statement.

4) NaCl smaller cation then KF
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3 years ago
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Explanation:

8 0
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WARRIOR [948]

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6 0
2 years ago
Explain how dalton's theory of the atom and the conservation of mass are related
Scorpion4ik [409]

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Dalton's atomic theory states that atoms may be mixed in certain rations to produce compounds, while the law of conservation of mass states that the mass of reactants equals the mass of products. They are related because in the production of compounds, Dalton made it clear that mass can neither be destroyed or created, which supports the conservation of mass law.

Explanation:^^^

Hoped it helped...

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