SCIENCE
PHYSICAL SCIENCES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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ductility
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magnetism
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holium
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alkali
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Detailed explanation-1: -The lanthanides are the 15 elements on the Periodic Table that have atomic numbers ranging from 57 through 71. These elements are often referred to as both the rare earth metals as well as the inner transition metals.
Detailed explanation-2: -The series always includes the 14 elements with atomic numbers 58 through 71, which are (in order of increasing atomic number) cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, and lutetium.
Detailed explanation-3: -Lanthanum (La) Cerium (Ce) Praseodymium (Pr) Neodymium (Nd) Promethium (Pm) Samarium (Sm) Europium (Eu) Gadolinium (Gd) More items •03-May-2019
Detailed explanation-4: -Lanthanum: symbol Ln, atomic number 57. Cerium: symbol Ce, atomic number 58. Praseodymium: symbol Pr, atomic number 59. Neodymium: symbol Nd, atomic number 60. Promethium: symbol Pm, atomic number 61. Samarium: symbol Sm, atomic number 62. Europium: symbol Eu, atomic number 63. More items •12-Dec-2019