5 Boron has two types of atom, shown below.
What is different about these two atoms?
1 What name is given to atoms like these?
Describe each atom in shorthand form, as in 3.
What is the nucleon number of atom A?
is atom B heavier, or lighter than atom A?
1 Give the electronic configuration for A and B.
ii Comment on your answer for i.
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Ответ:
Annie gives the key to helen
helen lifts her glasses and kisses her on her cheek.
helen was safe and everyone is different key to unlock her.