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BESARAN, SATUAN DAN VEKTOR - Blog

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05. Energi<br />

e = muatan electron<br />

r = jari-jari lintasan electron<br />

Ep = Energi potensial<br />

Ek = energi kinetic<br />

n = bilangan kuantum<br />

r = jari-jari lintasan electron<br />

λ = panjang gelombang<br />

h = tetapan Planck<br />

Dasar penemuan<br />

Penemu: Henry Becquerel<br />

Energi Pancaran E = 13,6 ( − )<br />

2 2 eV E = h.f (J)<br />

n A nB<br />

RADIOAKTIVITAS<br />

Adanya Fosforecensi : berpendarnya benda setelah disinari.<br />

Adanya Fluorecensi : berpendarnya benda saat disinari.<br />

Menghitamkan film<br />

Dapat mengadakan ionisasi<br />

Dapat memendarkan bahan-bahan tetentu<br />

Sifat-sifat Merusak jaringan tubuh<br />

Daya tembusnya besar<br />

Sinar α<br />

Macam sinar Sinar β Penemu: Pierre Curie dan Marrie Curie<br />

Sinar γ<br />

1<br />

1<br />

58

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