3. If an element has 47 protons and 54 neutrons what is the element and what is its atomic mass?
4. If one atom has 47 neutrons and a mass of 87 and another one has 41 protons and a
mass of 87, are they isotopes of each other?
5. Draw the electron dot diagram for the element Phosphorous.

3.Ag(silver) the atomic mass is 106.42
4.Nb(Niobium) the atomic mass is 92.906
5.

Read the sentences below in 1962, i tried to enroll as the first black student at the university of mississippi. the governor of mississippi blocked my entrance which best describes the verbs used in the sentences? o they are past tense verbs, which are often used in narrative essays o they are past tense verbs, which are not often used in narrative essays. o they are future tense verbs, which are often used in narrative essays o they are future tense verbs, which are not often used in narrative essays.