Which is always the first step in dealing with an accident in the lab?

call the emergency number, 911.
call the fire department.
notify the teacher.
read the msds information.

There are main groups in the modern periodic table of elements

‘which reaction would most likely require the use of an inert electrode?

Choose all the answers that apply. fluorine (f) has an atomic number of 9 and an atomic weight of 18.99. fluorine has a. 9 protons b. 10 neutrons c. 18 electrons d. an atomic mass of 19 e. at least one isotope