He set up his periodic table by the atomic mass
74 is the answer u find it by subtracting the protons(atomic number) from atomic mas, so basically... 127-53 =74 neutrons
Sulfur is a group six element in period 3 with atomic number 16 and an electronic configuration of 2:8:6. Therefore, to attain a stable configuration it requires to gain two electrons forming an ion with a charge of -2. The negative charge is due to the gaining of electrons.
Answer:
The substance is a mixture because it left a white powder in the beaker when boiled.
Explanation:
Answer:
Calcium chloride react with silver nitrate to produce calcium nitrate and silver(I) chloride.
