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What is radiums group?
Radium is a member of Group 2 on the periodic table, known as the alkaline earth metals group. This group includes elements such as beryllium, magnesium, calcium, strontium, and barium. Radium is a highly reactive metal that is radioactive.
What era makes up 88 percent of earths history?
The Precambrian era makes up about 88 percent of Earth's history. It started with the formation of the Earth around 4.6 billion years ago and lasted until about 541 million years ago.
How long does it take mercury to complete one revolution?
Mercury completes one revolution in about 88 Earth days. This is due to its slow rotation. Mercury is a terrestrial planet that is the nearest to the sun. A day on Mercury is about 58.5 Earth days.
What metal has been recycled with the greatest success?
Steel is the most recycled metal with the greatest success. It is highly recyclable and can be melted down and reused without losing its quality. Approximately 88% of steel is recycled globally.
About 88 percent of geologic time is represented by the time span called what?
The Precambrian Eon represents about 88 percent of geologic time on Earth. This eon includes all time prior to the Paleozoic Era and spans from the formation of the Earth about 4.6 billion years ago to the beginning of the Paleozoic Era around 541 million years ago.
Is an alkaline metal with a mass of 88?
calcium, :) im very smart
What is the most reactive alkaline earth metal?
Radium (Ra), atomic number 88, is the most reactive alkaline earth metal. It has the most energy levels of all the alkaline earth metals therefore it's electrons are more easily taken away.
What is the alkaline earth metal with the largest atomic radius?
Radium (Ra) Z = 88.
Which member of alkaline earth metal is least reactive?
Look at any periodic table: Beryllium #4 Magnesium #12 Calcium #20 Strontium #38 Barium #56 Radium #88
What place on the periodic table does radium belong in?
Oh, dude, radium is like that cool kid hanging out in Group 2 of the periodic table, also known as the alkaline earth metals. It's chilling right below barium and above francium, just doing its thing, being all radioactive and stuff. So yeah, radium is like the rockstar of Group 2.
How many electrons do alkaline earth metals have?
Each has 2 valence electrons but the number of total electrons varies with each metal. Here they are for each metal. Beryllium: 4 Magnesium: 12 Calcium: 20 Strontium: 38 Barium: 56 Radium: 88.
What element is an alkaline earth metal is very toxic?
Barium is an alkaline earth metal that is very toxic, especially in its soluble forms. Ingesting or inhaling barium compounds can lead to serious health issues such as respiratory problems, muscle weakness, and cardiac irregularities. Barium poisoning can be fatal if not treated promptly.
What is strontiums mass number?
Strontium is a metal element. Atomic mass of it is 88.
Is radium a compound or a element?
Radium is a chemical element, not a compound.
Heaviest member of group 2 in the periodic table?
Ununhexium is the heaviest metal in the periodic table of elements. It is man made however, so it might not count. The heaviest natural metal might be Radium.
What does Ra stand for in periodic table?
In the periodic table, Ra stands for the element radium. Radium is a highly radioactive element with atomic number 88. It is in the alkaline earth metal group and is known for its luminescent properties.
What are 5 characists of about the radium?
Symbol: Ra Phase: Solid, white alkaline metal but it reacts on exposure to air to form a dark nitride. Discovered by Marie and Pierre Curie in 1898. Atomic number: 88 Atomic mass: 226
