Table of Contents
What are elements 57 71 called?
lanthanoid
lanthanoid, also called lanthanide, any of the series of 15 consecutive chemical elements in the periodic table from lanthanum to lutetium (atomic numbers 57–71).
What are the elements with atomic numbers from 58 to 71?
lanthanide: The lanthanides are the 14 elements from cerium (atomic number 58) to lutetium (atomic number 71).
Are elements 58 71 metals?
The lanthanide and actinide series make up the inner transition metals. The lanthanide series includes elements 58 to 71, which fill their 4f sublevel progressively. Actinides are typical metals and have properties of both the d-block and the f-block elements, but they are also radioactive.
What period do elements 57 thru 71 belong in?
Period 6 element
A period 6 element is one of the chemical elements in the sixth row (or period) of the periodic table of the elements, including the lanthanides.
What are elements 58-71 called?
lanthanides
The lanthanides , elements 58-71, follow lanthanum on the periodic table.
What elements atomic number is 71?
Lutetium is a chemical element with symbol Lu and atomic number 71.
Does promethium glow?
Promethium is very radioactive and emits beta radiation, according to Lenntech. According to Chemicool, metallic promethium is silvery white, and the salts glow in the dark with a pale blue or green light. Promethium is recovered from the leftovers of uranium fission.
What element has the atomic number 71?
lutetium
| atomic number | 71 |
|---|---|
| atomic weight | 174.967 |
| melting point | 1,663 °C (3,025 °F) |
| boiling point | 3,402 °C (6,156 °F) |
| specific gravity | 9.841 (24 °C, or 75 °F) |
What is the name of Period 7 on the periodic table?
Period 7 contains the actinides, which comprises plutonium (the naturally occurring element with the heaviest nucleus).