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Why did Marie curie coin the term radioactivity?
As a prefix, "radio" means "related to radiant energy." Thus, an element that is actively giving off radiant energy is radio-active.
What are the 2 radioactive isotopes?
There are a lot more than 2 radio active isotopes... To answer this question a naturally or created radioactive element needs to be mentioned.
Are carbon isotopes radio active?
no
How does the composition of a rock containing a radioactive element change over time?
The compositionn of a rock containing a radioactive element changes over time by: decaying and changing into another element; the amount of the radio active element goes down, but the amount of the new element goes up.
Which element in 1a group is more reactivity?
Francium(Fr) is the most reactive element in Group 1A . The least reactive is Lithium(Li) The element become increasingly reactive 'down' Group 1A. NB You will NOT find francium in a school lab. for two reasons. 1. It explosive when in contact with water. 2. It is 'Radio-active' and radio-active matter has to be kept in special conditions.
Is darmstadtium an element in the periodic table of elements?
YES!!! It is No.110 (Ds ; Darmstatium) It is an artifical radio-active element.
Is there an element that can not be found in the periodic table?
An undiscovered element would not be in the periodic table. However new elements are now created, usually by bombardment of radioactivity all new elements created this way are also radio-active. There is a theory there may be an "island of stability" at around an atomic weight of 150.
What is second period at the bottom of the periodic table called?
The first period is at the top of the table. It consists of hydrogen and helium. The bottom period is period 7.
What is radio activity isotops?
Radio active isotopes are unstable isotopes of an element as there neutron number degenerate by emission of light or medium.
What is the atomic mass of uranium239?
Uranium is a radio active metal element. Atomic mass of it is 239.
Which gas is radio active and naturally formed by certain types of rocks?
The gaseous element "radon".
What element has a mass number of 96?
The element with 96 electrons is curium
What element is Np?
The element with chemical symbol Np is Neptunium. Neptunium is a radioactive Lanthanide and is part of the unofficial Promethium family. It has 93 electrons in 7 shells and is next to Uranium and Plutonium.
What most radioisopes use for medical diagnosis?
radio active element use in medicines thats a good question
What element is named after physicist Ernest O. Lawrence?
The element lawrencium, atomic number 103 with the chemical symbol Lr, is named in honor of Ernest Lawrence, who developed the first cyclotron for the study of nuclear particles.(see the related links below)
Why did Marie curie coin the term radioactivity?
As a prefix, "radio" means "related to radiant energy." Thus, an element that is actively giving off radiant energy is radio-active.
What is a stellar source of periodic radio signals called?
A stellar source of periodic radio signals is called quasar. This runs off of radio waves.
