Taking into account the atomic numbers (and not specific isotopes of each element) this list contains the radiactive elements ir order of atomic number.
The atomic number is Z. <span><span> </span><span>Tecnecium, Tc : Z = 43
<span>Prometium, Pm: Z = 61
</span></span>P<span>olonium, Po: Z = 84
</span><span>Astatine, At: Z = 85
</span><span>Radon, Rn: Z = 86
</span><span>Francium, Fr: Z = 87
</span><span>Radium, Ra: Z = 88
Actinium Ac: Z = 89
</span>Thorium, Th: Z = 90
Protactinium, <span>Pa: Z = 91
<span /></span><span>Uranium, U: Z = 92
Neptunium, Np: Z = 93
</span>Plutonium, <span>Pu: Z = 94
<span /></span><span>Americium, Am: Z = 95
</span><span>Curium, Cm: Z = 96
<span /></span><span>Berkelium, Bk: Z = 97
Californium, Cf: Z = 98
</span><span>Einstenium, Es: Z = 99
</span>Fermium, Fm: Z = 100
<span /><span>Mendelevium, Md: Z = 101
</span><span>Nobelium, No: Z = 102
</span><span>Lawrencium, Lr: Z = 103
</span><span>Rutherfordium, Rf: Z = 104
</span><span>Dubnium, Db: Z = 105
</span><span>Seaborgium, Sg: Z = 106
</span><span>Bhorium, Bh: Z = 107
</span><span>Hassium, Hs: Z = 108
</span><span>Meitnerium, Mt: Z = 109
</span><span>Darmstadium, Ds: Z = 110
</span><span>Roentgenium, Rg: Z = 111
</span><span>Copernicium, Cn: Z = 112
</span><span><span>Nihonium, </span>Nh: Z = 113
</span><span>Flerovium, Fl: Z = 114
</span><span><span>Moscovium</span>, Mc: Z = 115
</span><span>Livermorium, Lv: Z = 116
</span><span>Tennessine, Ts: Z = 117
</span><span>Oganesson, Og: Z = 118
</span></span>Remeber, other elements, although are not radiactive, do have radiactive isotopes.
<span>The only statement that states a fact about metals is the first option, letter A. They are shiny and bend without breaking. Choices B-D are wrong because metals are not insulators but are god conductors of heat and electricity. Metals can be flattened but they are not brittle.</span>
