Hello there Physical characteristics of the element in its pure form. Their symbols are taking from the periodic table of elements so that there is no confusion on the composition of what makes up product specific materials..Find Pb here.
There is still an issue with the lead-free solders, which is why in anything that must be reliable lead solder is still used. That includes pacemakers and space satellites.
And of course that old warning still applies, even with lead-free electronics: "never pull parts off the circuit board and eat them." They are still bad for one's health.