All elements can exist as individual atoms in excited states. However, at standard temperature and pressure, hydrogen, nitrogen, oxygen, fluorine, chlorine, bromine, and iodine exists as diatomic molecules.
Yes. 7 non-metals: hydrogen, nitrogen, oxygen, fluorine, chlorine, bromine, and iodine, consist of a "diatomic molecule" of two identical atoms of that element. Sulfur, phosphorus, carbon, and few other elements do this too under certain conditions.
When atoms combine to make molecules only the electrons adhere together to form bonds. The protons, neutrons, and nucleus do not combine.
Yes, when channels are specific for the structures of individual molecules it is active transport. Active transport cannot occur if the energy they are moving is not of the same type, like glucose cannot move calcium.
No, you cannot see individual atoms of elements with a school microscope. Atoms are much smaller than the wavelength of visible light, so they cannot be resolved by optical microscopes. Specialized techniques such as scanning electron microscopy or atomic force microscopy are needed to visualize atoms.
Maltose is a complex sugar made up of two glucose molecules which cannot be directly absorbed into the body. Hence it needs to be broken down into two individual glucose molecules for ready absorption.
Diatomic molecules cannot exist on their own because if they are alone they are very unstable and will react with any element very quickly.
All elements and compounds are present in molecular state. They cannot be found as individual atoms. Atoms cannot exist in free state.
All elements and compounds are present in molecular state. They cannot be found as individual atoms. Atoms cannot exist in free state.
Elements are the basic building blocks of matter and cannot be broken down into simpler substances. Molecules are formed when two or more atoms of different or the same element chemically combine. In other words, elements are the individual components, while molecules are the combinations of these components.
Chemical compounds or molecules cannot be separated into their individual elements by physical means. These substances require chemical reactions or processes, such as electrolysis or heating, to break the bonds between their constituent elements.
Elements
Ah, diatomic molecules are like best friends that always stick together! Elements in Group 17, also known as the halogens, are the ones that exist as diatomic molecules in their natural state. They form pairs, like H2, Cl2, and Br2, creating beautiful bonds that make them feel cozy and complete. Just like how we all need a friend to feel whole, these elements find comfort in each other's presence.
Neptunium is an individual element; isotopes of neptunium are not separated.
Nitrogen gas consists of molecules, each of which consists of two atoms of the element nitrogen. Since a compound has to consist of two or more elements nitrogen cannot be a compound, by definition.
Oxygen is considered an element because it consists of atoms with the same number of protons in their nucleus. While oxygen gas in the atmosphere is made up of diatomic molecules (O2), each molecule contains two oxygen atoms bonded together. These individual oxygen atoms are still considered elements because they cannot be broken down into simpler substances by ordinary chemical reactions.
It's called an elemental mineral, like diamond (crystallized carbon) or gold.
There are several types of diatomic molecules, that is molecules formed by two atoms. Molecules formed by two identical atoms are frequent like gaseous hydrogen and oxygen (H2 and O2) while other molecules are made by different atoms like carbon monoxide (CO), nitric oxide (NO), and hydrogen chloride (HCl). It is to be noted that diatomic molecules have to be distinct by substances that are not formed by separated molecules, but where two atoms are present in an equal stoichiometric ratio. For example, solid NaCl (that is common cooking salt) is a crystal with a number of sodium atoms equal to the number of chloride atoms. In a crystal a regular disposition of atoms of different kinds is present where individual molecules cannot be insulated.