(F) Flourine
The halogen with the least-negative electron affinity is astatine. Electron affinity and electronegativities decreases down a group. Since astatine is the last halogen located in Group 17 as you move down the column from fluorine, it has the least negative electron affinity.
Group seven is known as the halogen group. The least reactive element in group seven is astatine. Fluorine is the most reactive.
Hispanic
If it's outermost electron shell is filled.
the alkali metals
radium as the ,negative, electrons in it's outer shell are least affected by the ,positive, nucleus.
It is to do with the number of electron shells it has. it has the least number of shells in group 7, it is is easier to gain an electron as the attraction is strongest from the nucleus of the element.
It's necessary to see the table you are referencing to answer this question
The halogen with the least-negative electron affinity is astatine. Electron affinity and electronegativities decreases down a group. Since astatine is the last halogen located in Group 17 as you move down the column from fluorine, it has the least negative electron affinity.
Element with atomic number 3 is Lithium (Li). It is the first element in the Group 1 - Alkali Metals family and is the least dense metal on the Periodic Table. It has 3 electrons in two shells with 1 electron in the outer shell.
Group seven is known as the halogen group. The least reactive element in group seven is astatine. Fluorine is the most reactive.
This chemical element is wolfram (W).
This chemical element is wolfram (W).
Hispanic
The element hydrogen is least massive as it has only one proton, one electron.
Argon
Nobel gasses.