Atoms and Atomic Structure

A compound is defined and named based on the relative number of atoms from each element it is composed of. If one atom from one element of a compound's composition is changed, it is a different compound.

The source of carbon atoms for glucose molecules in a plant is carbon dioxide (CO2) obtained from the air during photosynthesis. Through the process of photosynthesis, plants take in carbon dioxide and water and use sunlight to convert them into glucose and oxygen.

After an organism dies, the carbon-14 levels start to decrease through radioactive decay, with half of the carbon-14 atoms decaying every 5,730 years. This process allows scientists to determine the age of organic remains through radiocarbon dating.

The number of particals (molecules, atoms, ions etc.) in one mole of ANY substance is the same: 6.022*1023 (Avogadro's number)

A polyatomic molecule is a molecule that contains more than two atoms chemically bonded together. The valence electron structure of all atoms in a polyatomic molecule contributes to the molecule's overall chemical behavior and properties, as it determines how the atoms interact with each other to form bonds and stabilize the molecule.

When the number of electrons changes, the atom becomes an ion. An atom becomes a positively charged ion (cation) when it loses electrons and a negatively charged ion (anion) when it gains electrons.

Molecules are formed when two or more atoms chemically bond together. Atoms are not typically found in isolation because they tend to interact with other atoms to form stable structures such as molecules. This is due to the tendency of atoms to fill their outer electron shells by forming bonds with other atoms.

There are no unpaired electrons. All electron shells are filled; this is the reason they are called the noble gases.

Oxygen is an oxidizer, it will gain electrons in a reaction to complete it's valence shell.

A neutral atom of iron with 26 protons will have 26 electrons.

An excess of electrons would produce a negative (-) charge since these particles are negative. If you imagine a scale with negative and positive weights, more negative weights would make the scales tip towards the negative end.

A shell reamer stays on the arbor through a tight fit or keyway connection, which ensures the reamer securely attaches to the arbor during machining operations. The precision fit helps prevent slipping or coming loose while in use.

The shell that contains a total of 9 orbitals is the third shell. This shell consists of one 3s orbital, three 3p orbitals, and five 3d orbitals, which adds up to 9 orbitals in total.

According to Dalton's atomic theory chemical reactions occur when atoms are separated, joined, or rearranged. Atoms of one element, however, are never changed into atoms of another element as a result of a chemical reaction (it is possible only during nuclear reactions and radioactive disintegration).

We can find atomic mass and mass number in chemical elements. Atomic mass is about weight of the atom. Mass number is about total of neutrons and protons.

The formula N2O5 shows that there are 2/5 as many nitrogen atoms as oxygen atoms in the compound. Therefore, the number of nitrogen atoms required is (2/5)(7.05 X 1022) or 2.82 X 1022 atoms. The gram atomic mass of nitrogen is 14.0067 and, by definition, consists of Avogadro's Number of atoms. Therefore, the mass of nitrogen required to react with the specified amount of oxygen to produce the specified compound is 14.0067 [(2.82 X 1022)/(6.022 X 1023] or 0.656 grams of nitrogen, to the justified number of significant digits.

You can determine if an atom has paired or unpaired electrons by following Hund's rule, which states that electrons fill orbitals of a subshell singly with parallel spins before pairing up. Using the electron configuration of the atom, you can identify the number of electrons in each orbital and determine if they are paired or unpaired. Alternatively, you can use electron spin resonance spectroscopy to directly observe unpaired electrons in an atom.

Atoms that share an equal number of electrons form covalent bonds. In these covalent bonds, each atom contributes the same number of electrons to the shared pair. This equal sharing of electrons results in stable molecules.

Matter is not invented by man, it is created by God (if you belived)

Yes, atoms can form chemical bonds with each other to create molecules, and these bonds can be broken through chemical reactions or physical forces. This process allows atoms to bond and unbond with other atoms under different conditions, leading to the formation and breakdown of various compounds.

In the electronic configuration when the last shell is filled with 1,2 or 3 electrons then the element tends to give out electrons.

when elements give out these 1,2 or 3 electrons it becomes positive

these positive atoms are metals

An atom that has lost valence electrons is called a cation. This causes the atom to have a positive charge due to having more protons than electrons.

An element is a substance whose atoms all contain the same number of protons and the same number of electrons. The number of protons in an element's atom determines its atomic number and defines its chemical identity.