Protons Neutrons Electrons

Tantalum is a classified transition metal and its symbol is ‘Ta’. Tantalum is the 73rd element of the periodic table so its atomic number is 73. The atomic number of an element…

Hafnium is a classified transition metal and its symbol is ‘Hf’. Hafnium is the 72nd element of the periodic table so its atomic number is 72. The atomic number of an element…

Lutetium is a classified lanthanide element and its symbol is ‘Lu’. Lutetium is the 71st element of the periodic table so its atomic number is 71. The atomic number of an element…

Ytterbium is a classified lanthanide element and its symbol is ‘Yb’. Ytterbium is the 70th element of the periodic table so its atomic number is 70. The atomic number of an element…

Thulium is a classified lanthanide element and its symbol is ‘Tm’. Thulium is the 69th element of the periodic table so its atomic number is 69. The atomic number of an element…

Erbium is a classified lanthanide element and its symbol is ‘Er’. Erbium is the 68th element of the periodic table so its atomic number is 68. The atomic number of an element…

Holmium is a classified lanthanide element and its symbol is ‘Ho’. Holmium is the 67th element of the periodic table so its atomic number is 67. The atomic number of an element…

Dysprosium is a classified lanthanide element and its symbol is ‘Dy’. Dysprosium is the 66th element of the periodic table so its atomic number is 66. The atomic number of an element…

Terbium is a classified lanthanide element and its symbol is ‘Tb’. Terbium is the 65th element of the periodic table so its atomic number is 65. The atomic number of an element…

Gadolinium is a classified lanthanide element and its symbol is ‘Gd’. Gadolinium is the 64th element of the periodic table so its atomic number is 64. The atomic number of an element…

Europium is a classified lanthanide element and its symbol is ‘Eu’. Europium is the 63rd element of the periodic table so its atomic number is 63. The atomic number of an element…

Samarium is a classified lanthanide element and its symbol is ‘Sm’. Samarium is the 62nd element of the periodic table so its atomic number is 62. The atomic number of an element…

Promethium is a classified lanthanide element and its symbol is ‘Pm’. Promethium is the 61st element of the periodic table so its atomic number is 61. The atomic number of an element…

Neodymium is a classified lanthanide element and its symbol is ‘Nd’. Neodymium is the 60th element of the periodic table so its atomic number is 60. The atomic number of an element…

Praseodymium is a classified lanthanide element and its symbol is ‘Pr’. Praseodymium is the 59th element of the periodic table so its atomic number is 59. The atomic number of an element…