檢視天然放射性的原始碼

[[File:天然放射性.jpg|缩略图|[https://image.baidu.com/search/detail?ct=503316480&z=0&ipn=d&word=%E5%A4%A9%E7%84%B6%E6%94%BE%E5%B0%84%E6%80%A7&step_word=&hs=0&pn=11&spn=0&di=121000&pi=0&rn=1&tn=baiduimagedetail&is=0%2C0&istype=0&ie=utf-8&oe=utf-8&in=&cl=2&lm=-1&st=undefined&cs=173783822%2C4285772089&os=3296612314%2C3661903435&simid=173783822%2C4285772089&adpicid=0&lpn=0&ln=1862&fr=&fmq=1636802952312_R&fm=&ic=undefined&s=undefined&hd=undefined&latest=undefined&copyright=undefined&se=&sme=&tab=0&width=undefined&height=undefined&face=undefined&ist=&jit=&cg=&bdtype=0&oriquery=&objurl=https%3A%2F%2Fgimg2.baidu.com%2Fimage_search%2Fsrc%3Dhttp%3A%2F%2Fm.wendangwang.com%2Fpic%2F9f66c6043c029e3e4fb5dc9c%2F2-810-jpg_6-1080-0-0-1080.jpg%26refer%3Dhttp%3A%2F%2Fm.wendangwang.com%26app%3D2002%26size%3Df9999%2C10000%26q%3Da80%26n%3D0%26g%3D0n%26fmt%3Djpeg%3Fsec%3D1639395337%26t%3D9bb5e35d8df1d0b388865bab3383d7e4&fromurl=ippr_z2C%24qAzdH3FAzdH3Fooo_z%26e3Bojg1wg2owg2_z%26e3Bv54AzdH3F15vAzdH3Flummvma9nvadljnj9ukc1vlvAzdH3Fd&gsm=8&rpstart=0&rpnum=0&islist=&querylist=&nojc=undefined&dyTabStr=MCwxLDQsMiw1LDMsNiw3LDgsOQ%3D%3D 原图链接][https://www.wendangwang.com/doc/9f66c6043c029e3e4fb5dc9c/2 来自文档网]]]
'''天然放射性'''（Natural radioactivity）是指天然存在的放射性同位素，其能够从不稳定的原子核自发地放出[[射线]]，（如α射线、β射线、γ射线等）而衰变形成稳定元素的属性。<ref>[https://baijiahao.baidu.com/s?id=1688850470837552185&wfr=spider&for=pc 发现放射性]中国数字科技馆</ref>