Q. What can elements and compounds have in common?
On first glance, elements and compounds might appear different, yet they share many similarities, like being made up of atoms and having bonds linking their atoms together. Elements and compounds also share the qualities of being both pure and homogeneous substances.
Q. When one or more substance is called?
Key Takeaways. Pure substances are composed of a single element or compounds. Combinations of different substances are called mixtures. Homogeneous mixtures are mixtures of two or more compounds (or elements) that are not visually distinguishable from each other.
Table of Contents
- Q. What can elements and compounds have in common?
- Q. When one or more substance is called?
- Q. When you have 2 hydrogen atoms combine it will be produced?
- Q. Are atoms more stable when combined?
- Q. How do you know if an element is stable or unstable?
- Q. How do you know if a molecule is stable?
- Q. What are three ways an atom can become stable?
- Q. How do atoms become more stable?
- Q. How does hydrogen become stable?
- Q. How do two nonmetal atoms become more stable and form compounds?
Q. When you have 2 hydrogen atoms combine it will be produced?
The Hydrogen Molecule. When two hydrogen atoms combine to form a hydrogen molecule, H2, they do so in a way quite different from the electron transfer process we have been discussing. Instead of transferring an electron to form H+ and H− ions, the two atoms share their two electrons.
Q. Are atoms more stable when combined?
Atoms form chemical bonds to make their outer electron shells more stable. The type of chemical bond maximizes the stability of the atoms that form it. Covalent bonds form when sharing atoms results in the highest stability.
Q. How do you know if an element is stable or unstable?
An atom is stable if the forces among the particles that makeup the nucleus are balanced. An atom is unstable (radioactive) if these forces are unbalanced; if the nucleus has an excess of internal energy. Instability of an atom’s nucleus may result from an excess of either neutrons or protons.
Q. How do you know if a molecule is stable?
The stability of atoms depends on whether or not their outer-most shell is filled with electrons. If the outer shell is filled, the atom is stable. Atoms with unfilled outer shells are unstable, and will usually form chemical bonds with other atoms to achieve stability.
Q. What are three ways an atom can become stable?
Another way atoms can become more stable is by sharing electrons (rather than fully gaining or losing them), thus forming covalent bonds….There are three major chemical bonds.
- Ionic bond.
- Covalent bond.
- Hydrogen bond.
Q. How do atoms become more stable?
Some atoms become more stable by gaining or losing an entire electron (or several electrons). When they do so, atoms form ions, or charged particles. Electron gain or loss can give an atom a filled outermost electron shell and make it energetically more stable.
Q. How does hydrogen become stable?
Hydrogen only has one electron in its lowest energy level. This is a very unstable arrangement, and hydrogen gas undergoes a variety of reactions so as to reach a stable electron configuration where its energy level is either empty of electrons, or filled with electrons.
Q. How do two nonmetal atoms become more stable and form compounds?
Ionic bonds form when a nonmetal and a metal exchange electrons, while covalent bonds form when electrons are shared between two nonmetals. Atoms form covalent bonds in order to reach a more stable state. A given nonmetal atom can form a single, double, or triple bond with another nonmetal.
