What is the reactivity of oxygen?
Oxygen is a highly reactive nonmetallic element; it is a strong oxidizing agent with high electronegativity and forms O2 at Standard Temperature and Pressure (STP).
Does reactivity increase across a period?
Chemical reactivity of the elements Period – reactivity decreases as you go from left to right across a period. The farther to the left and down the periodic chart you go, the easier it is for electrons to be given or taken away, resulting in higher reactivity.
Which period of elements is most reactive?
Potassium (K) is an alkali metal, placed under sodium and over rubidium, and is the first element of period 4. It is one of the most reactive elements in the periodic table, therefore usually only found in compounds.
What period is oxygen in on the periodic table?
2
Fact box
| Group | 16 | −218.79°C, −361.82°F, 54.36 K |
|---|---|---|
| Period | 2 | −182.962°C, −297.332°F, 90.188 K |
| Block | p | 0.001308 |
| Atomic number | 8 | 15.999 |
| State at 20°C | Gas | 16O |
Is oxygen reactive or inert?
Element No. 8 on the Periodic Table of the Elements is a colorless gas that makes up 21 percent of Earth’s atmosphere. Because it’s all around, oxygen is easy to dismiss as dull and inert; in fact, it’s the most reactive of the non-metallic elements.
Where is oxygen in the periodic table?
oxygen (O), nonmetallic chemical element of Group 16 (VIa, or the oxygen group) of the periodic table.
How does the reactivity change in 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 does the periodic table show reactivity?
Reactivity: The reactivity of the elements increases going from left to right on the periodic table. Each element going from left to right tends to be more reactive. The reactivity all increases as you go down the periodic table, for example rubidium is far more reactive than sodium.
Where are the reactive elements on the periodic table?
The elements toward the bottom left corner of the periodic table are the metals that are the most active in the sense of being the most reactive.
Which period 3 element is most reactive?
Sodium. Sodium (symbol Na) is a soft, silvery-white, highly reactive metal and is a member of the alkali metals; its only stable isotope is 23Na. It is an abundant element that exists in numerous minerals such as feldspars, sodalite and rock salt.
What is a period on a periodic table?
The horizontal rows of the periodic table are called periods. Each period corresponds to the successive occupation of the orbitals in a valence shell of the atom, with the long periods corresponding to the occupation of the orbitals of a d subshell.
Why is oxygen unstable?
One oxygen atom is unstable since it has only 6 electrons in the outermost shell. The oxygen atom forms a covalent bond with another atom of oxygen and shares 2 electrons in order to make the valence shell electrons to be equal to 8. An oxygen molecule(O2) with two atoms of oxygen is stable.
What happens when elements react with oxygen on the periodic table?
Elements combine together with oxygen to form oxides. Elements on the extreme left of the periodic table react with oxygen to form basic oxides (Na 2O), while elements on the extreme right form acidic oxides on reaction with oxygen (Cl 2O 7).
What kind of oxides are on the periodic table?
Elements on the extreme left of the periodic table react with oxygen to form basic oxides (Na 2 O), while elements on the extreme right form acidic oxides on reaction with oxygen (Cl 2 O 7). Oxides of the elements in the centre of the periodic table are amphoteric (Al 2 O 3). Amphoteric oxides are those which behave as acids as well as bases.
When does reactivity increase on the periodic table?
Period – reactivity increases as you go from the left to the right across a period. Group – reactivity decreases as you go down the group. The farther right and up you go on the periodic table, the higher the electronegativity, resulting in a more vigorous exchange of electron
How many electrons does oxygen have on the periodic table?
Oxygen is a 8. chemical element in the periodic table of elements. It has 8 protons and 8 electrons in the atomic structure. The chemical symbol for Oxygen is O.