Lead vs Tin

Lead and Tin are genuine alternatives to one another — a choice somebody actually makes — and differ on 5 measured properties, density most clearly.

Soft, dense, easily worked, and quietly poisoning people for three thousand years.

A soft, low-melting metal whose main historical significance is that adding it to copper makes bronze.

Property comparison of Lead and Tin
Property	Lead	Tin
Atomic number	82 higher	50
Density	11.34 g/cm³ higher	7.31 g/cm³
Electrical conductivity	4.8 MS/m	9.2 MS/m higher
Melting point	327.2–328 °C higher	231.93 °C
Mohs hardness Mohs hardness is an ordinal scale: values can be ranked, but differences and ratios between them are not meaningful.	about 1.5	about 1.5
Molar mass	207.2 g/mol higher	118.71 g/mol

Choosing between them

Tin is recorded as a substitute for Lead — less toxic.

What it gives up: Melts some thirty-five degrees hotter, which forced the whole electronics industry to re-qualify its components.

Direct substitute, on the evidence cited above.