answersLogoWhite

0

Nitrogen, oxygen, and carbon. (NO, NO2, O2, O3, CO, CO2)

These elements are in period 2 and tend to form gaseous oxides rather than the solid oxides of period 3. i.e SiO2, P4O10, SO3 (gaseous at STP).

User Avatar

Wiki User

15y ago

What else can I help you with?

Related Questions

What is an element that is highly reactive gaseous nonmetal?

Chlorine and fluorine, with fluorine more reactive. Some would also include oxygen. (The two remaining halogens are not gaseous at room temperature.)


How many oxides oxygen has?

Arguably, none. But oxygen exists in 2 forms at STP - O2 and O3 - ozone.


What are two or more substances that are together but do not combine to form a new pure substance?

A mixture forms when two or more substances combine physically but not chemically.


Is sulfur reactive with oxygen?

Yes; sulfur forms at least two oxides, with formulas SO2 and SO3.


Is sulfur oxide a gas?

Sulfur forms two oxides SO2 and SO3 both these are gases at room temperature.


What are two forms of water ii found in a rain forest?

Rain, fog and gaseous form, liquid pools.


What is the difference of oxide and dioxide?

Oxide is a compound that contains oxygen combined with one other element, while dioxide is a specific type of oxide that contains two oxygen atoms combined with another element. In other words, all dioxides are oxides, but not all oxides are dioxides.


Is fluorine a compound or element?

Fluorine is an element from the periodic table with the symbol F and atomic number 9. It is not a compound, as compounds are formed when two or more elements chemically bond together.


When two or more atoms join together?

If they are both the same element then it forms a molecule, if they are two different elements then it forms a compound.


What is one of at least two possible forms of the same element?

An isotope.


What is the name for these two forms of an element that differ by the number of neutrons?

Isotope.


If element X forms the oxides XO and X2O3 the oxidation numbers of element X are what?

Oxygen forms a -2 ion. x0 - x= +2. The compound overall needs to be neutral, so you add up all the charges from the oxygen and add whatever you need to make it neutral. eg: FeO - oxidation state of iron = +2, since oxygen forms -2 and compound is overall neutral. Fe2O3 - -6 from the oxygen. So you need to add +3, and there are two Fe's so you divide it by two - therefore iron is +3. Hope that helps.