Mass numbers of Li, Be and B are 7, 9 and 10 respectively. Among B^(+), Be^(2+), Li^(+), Be Which has two electrons, three protons and four neutrons

Mass numbers of Li, Be and B are 7, 9 and 10 respectively. Among B^(+)

1.	Mass numbers of Li, Be and B are 7, 9 and 10 respectively. Among B^(+), Be^(2+), Li^(+), Be Which has two electrons, three protons and four neutrons
Answer» ANSWER :LI