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the atomic number is 88
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What is the atomic number to Ra?
Radium is a non meta element. Atomic number of it is 88.
First element known to be radioactive?
Radium (Ra) atomic number 88
Which two solid metal elements might scientists use to create an element with an atomic number of 129?
Strontium(Sr) and Radium(Ra)
This element has an atomic number that is double the atomic number of silicon?
this elemnt has an atomic number that is double the atomic number of silicon?
Which element has an atomic number between 27 and 31?
Atomic number 27 : Cobalt Atomic number 28 : Nickel Atomic number 29 : Copper Atomic number 30 : Zinc Atomic number 31 : Gallium
What is the atomic number to Ra?
Radium is a non meta element. Atomic number of it is 88.
What is the atomic number of radium?
The atomic number of radium (Ra) is 88.The atomic weight of Ra is 226 grams per mole.See the Web Links to the left of this answer for a periodic table with more information about this element!
Which radioactive element has the symbol Ra?
Radium. Atomic number 88
How many protons are in an atom represented by 220 88 Ra?
The 220 is the atomic MASS, which is the number of protons plus the number of neutrons. 88 is the atomic NUMBER, which is the number of protons only. The "Ra' is the abbreviation for radium, one of the first-detected radioactive elements.
First element known to be radioactive?
Radium (Ra) atomic number 88
What element is formed when Ra emits an alpha particle?
Next element in the periodic table ie Actinium.
The atomic weight of ra is what?
Radium 88's atomic weight is 226.0254
What radioactive element was once used as a glow-in-the-dark paint?
The answer is Radium Ra group IIA or atomic number 88
Which two solid metal elements might scientists use to create an element with an atomic number of 129?
Strontium(Sr) and Radium(Ra)
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.
How many neutrons does Ra have?
For 226Ra, the most common radium, it had 138 neutron. Other isotope scuch as 223, 224, 228Ra will have number of neutron of the stated molecularmass minus its' atomic number.
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.
