Naturally occurring silicon has three stable isotopes.

Naturally occurring tellurium has eight stable isotopes.

Naturally occurring tungsten has five stable isotopes.

Naturally occurring xenon has nine stable isotopes.

Natural occurring selenium has six stable isotopes.

Naturally occurring germanium has five stable isotopes.

Naturally occurring zinc has five stable isotopes.

Naturally occurring iridium has two stable isotopes.

Natural occurring titanium has five stable isotopes.