1 part, I don’t know if it right

asked Dec 1, 2023 186k views

3 votes

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4 votes

Answer:

Step-by-step explanation:

Darren Oster answered Dec 2, 2023

7.3k points

6 votes

Answer:

atomic number = 5

element is Boron

mass number = 9

Isotope name = Boron-9

Step-by-step explanation:

Agross answered Dec 6, 2023

7.3k points

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