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Why does the resistance of a conductor rise with the rise in temperature?
For metals, as the temperature rises, the atoms wiggle around more, and are more likely to be hit by an electron that is moving through the metal. The more electrons that hit the atoms, the greater the resistance. Think of the wiggling atoms as interfering with the smooth flow of electrons.
How does an alloy differ from a metal?
An alloy consist of two or more different atoms and a metal is just consisting of the same atoms.
Will two oxygen atoms form an ionic bond?
No, two oxygen atoms do not typically form an ionic bond. Oxygen is more likely to form covalent bonds by sharing electrons with other non-metal atoms.
Is uranium more likely to lose or gain electrons?
Uranium loose electrons becoming a cation.
What kind of metal is used in PlayStation three?
More than likely, it would be aluminum with some small amounts of iron(steel)
Are covalent bonds more likely to be found containing both metal and non metals or compounds containing only non metals?
Covalent bonds are more likely to be found in compounds containing only nonmetals. This is because covalent bonds involve the sharing of electrons between two nonmetal atoms, which allows for the formation of stable molecules. In contrast, metal atoms tend to form ionic bonds with nonmetal atoms due to their tendency to lose electrons.
What atoms are likely to gain one or more electrons when they bond with other atoms?
nonmetals
Atoms that are unstable are more likely to be what than atoms that are stable?
Atoms that are unstable are more likely to be radioactive than atoms that are stable. This means they can emit radiation in the form of alpha or beta particles, or gamma rays, in order to reach a more stable state.
What is formed when combining oxygen with metals?
When oxygen combines with metals, oxides are formed. These are chemical compounds that consist of oxygen atoms connected with one or more metal atoms. Oxides can have various properties depending on the metal and the ratio of oxygen to metal atoms in the compound.
Why do metals expand when hot and contract when cooled?
When metals are heated, the atoms within the metal vibrate more rapidly, causing them to take up more space and the metal to expand. When the metal is cooled, the atoms vibrate less, allowing them to move closer together, resulting in contraction. This expansion and contraction is due to the changes in the spacing and movement of the atoms within the metal structure.
Which has more atoms small cube or big cube?
The answer depends on what the substance is. A small solid cube will usually have more atoms than a larger cube filled with a gas.
Is an element that are soft and easy to cut cleanly with a knife likely to be a metal or a nonmetal?
An element that is soft and easy to cut cleanly with a knife is more likely to be a metal. Metals tend to have metallic bonds that allow layers of atoms to slide past each other easily, making them malleable and ductile. Nonmetals are usually brittle and cannot be easily cut with a knife.
