What are the two factors that determine the reactivity of elements?
Four major factors affect reactivity of metals: nuclear charge, atomic radius, shielding effect and sublevel arrangement (of electrons). Metal reactivity relates to ability to lose electrons (oxidize), form basic hydroxides, form ionic compounds with non-metals.
How do you determine reactivity on the periodic table?
Period – reactivity decreases as you go from left to right. Period – reactivity increases as you go from the left to the right. Group – reactivity decreases as you go down the group.
How is the reactivity of metals determined?
The reactivity of metals is due to the difference in stability of their electron configurations as atoms and as ions. As they are all metals they will form positive ions when they react. Group 1A metals are the most reactive for that reason.
What determines how reactive an element is quizlet?
The reactivity of a metal depends on how easily it loses its valence electrons. True. With in each———- in the periodic table, elements have similar properties because they have the same number of valence electrons.
What determines an element?
The number of protons in the nucleus determines which element an atom is, while the number of electrons surrounding the nucleus determines which kind of reactions the atom will undergo.
Which determines the reactivity of an alkali metal?
Three factors contributing to the reactivity of the alkali metals are the amount of positive charge in the nucleus, the distance to the outermost electron and the shielding by the other electrons between the nucleus and the outer electron.
What makes a metal more reactive than another?
Reactivity Series Metal ions are positively charged as they lose negative electrons. Some metals give up their electrons more readily than others and are, therefore, more reactive.
What determines properties of an element?
An element can be identified by its atomic number, or the number of protons located in its nucleus. Valence electrons determine the chemical properties of an element, or how the valence electrons of one element are shared or traded with valence electrons of other elements to create new molecules.
What determines the reactivity of an alkali metal quizlet?
The number of valence electrons determines an element’s reactivity, or how likely the element is to react with other elements. Because alkali metals are so reactive, they are only found in nature combined with other elements.
What determines an element’s reactivity and other chemical properties?
The number of electrons in the outermost shell of an atom determines its reactivity. Noble gases have low reactivity because they have full electron shells. Halogens are highly reactive because they readily gain an electron to fill their outermost shell.
What determines the chemical properties of elements?
What element would be more reactive with other elements?
Reactivity: Metals are very reactive, some more than others, but most form compounds with other elements quite easily. Sodium (Na) and potassium (K) are some of the most reactive metals. A metal like iron (Fe) forms iron oxide (Fe2O3), which you know as rust.
What determines how reactive an element will be?
The reactivity of a metal is determined by how tightly the metal holds onto the electrons in its outermost energy level. These electrons are called valence electrons.
Which family of elements is the least reactive?
The most reactive elements are the alkali metals. They react with the halogens that are also very reactive. The least reactive elements are the noble gases. The most reactive are the halogens and the alkali metals . The least reacitve are the noble gasses. This is because they have certain numbers of valance electrons.
What element group is the highest reactivity?
Which is the most reactive element? The most reactive elementary group is alkali metals (situated far apart from intermediate metals and noble gases). Cesium is second from the bottom of this group, has 6 shells of electrons, and it matches the features of a reactive atom, making it the most reactive element.