3 years ago

HELP CHEMISTRY PLEASE I BEG U 25 POINTS

Chemistry

1 answer:

andrew-mc [135]3 years ago

7 0

Answer:

The correct answers are given below

Explanation:

1 An increase of one in atomic number and no change in the mass number.

2 All the above statements are correct.

3 A decrease of one in atomic number and a decrease of four in mass number.

4 Have a high neutron to proton ratio.

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