Fluorine
Halogens
the number of electrons the element needs to lose or gain to have a full valence shell
Potassium, from top to bottom for groups 1 and 2, reactivity increases
Yes. Gold is an element which exists in nature, as pure, solid gold. Because it is quite inert and unreactive, gold does not easily give up electrons (i.e. is not easily oxidised) and hence it does not readily form compounds in nature, rather it exists in its elemental form. For example, zinc is a more reactive metal than gold and more readily gives up electrons to form ions, and hence it is often found in nature as a ZnO (solid) or ZnS (zinc sulfide - solid) compound. As an ion, gold is readily reduced (i.e. gains electrons) to form solid, elemental gold.
Atoms are the most basic form of an element. They cannot be broken down further and still be that element.
Sulfur is an element. An atom is the smallest division of an element that remains the same element--any further division of the element divides it into its atomic particles. The most common isotope of a sulphur atom has 16 electrons, 16 protons, and 16 neutrons.
Gold, as it's the most electronegative of those four elements.
Group VII A or XVII or Halogens.
NAD+ i think
The element that attracts electrons the most would be Fluorine
The valence electrons are the outer most electrons and the principal energy level in which they belong will vary for element to element and generally corresponds to the period number in which the element is present
Alkaline Earths will most easily lose an electron. This is because the have a smaller alkali radii than alkali metals causing them to not be as tightly bound to the nucleus. This makes the more readily lose their electrons.
The valence electrons are the outer most electrons and the principal energy level in which they belong will vary for element to element and generally corresponds to the period number in which the element is present
The valence electrons of the element are very shielded. The valence electrons are far from the nucleus.
From a purely electronegative standpoint, Flourine is most likely to be an electron acceptor.
Uup, or ununpentium with 115 electrons
Flammability
No. Fluorine wears that crown, followed by chlorine. These two halogens can strip an electron from just about anything, even noble gases! The only known molecules which include noble gases have been made with these halogens for this reason. Sulfur is more electronegative or electrophilic (electron loving) that almost all other elements, but the two previously mentioned halogens are way out in front of it.