Plasma
The 4th and most abundant state of matter.
It is poorly understood, congregates in turbulent 'shocks' around matter, more dense when in motion (i.e. Earths 'bow shock', [<10^14/cm^-3] spacecraft on re-entry, [up to the optical breakdown density limit] etc.) and can be propagated by the 'Unruh effect' and photo-ionization. It also constitutes the 'pairs' of 'pair production', perhaps the result of the 'Higgs Boson'. It is the main constituent of lasers. In the ionosphere positrons have also been found (busy being annihilated?) It is very diffuse in deep space but density increases around galaxy clusters etc.
It has very interesting qualities refractive index n=1, as a vacuum however dense, and even found at n=0.999998 (theoretically giving 'superluminal' em wave transmission). It is also 'self focusing. Again needing more investigation, but effectively 'atomic scattering' light without 'scattering' it around. These effects have not yet been assimilated into theory.
Different elements have different properties because of the arrangement of electrons in their atoms. The number of protons in the nucleus determines the element's identity, while the arrangement of electrons determines its properties. Factors like atomic structure, electron configuration, and bonding behavior contribute to the unique characteristics of each element.
Valance electrons means that the element has not reached the octet configuration and is therefore reactive the reactivity depends on the no. of valance electrons the more valance electrons the more unstable the atom is and the more reactive it is.The gasses like helium neon xenon are all inert which means they have an octet configuration and have no delocalised or valance electrons.
The bonds between atoms in benzene are molecular, specifically covalent bonds. Benzene is a hydrocarbon composed of carbon and hydrogen atoms held together by shared pairs of electrons. The electrons are shared between atoms, resulting in a stable molecular structure.
Diatomic molecules usually form covalent bonds, where two atoms share pairs of electrons to achieve a stable electron configuration. This allows the atoms to achieve a full outer electron shell and increase their stability. Examples of diatomic molecules include hydrogen (H2), oxygen (O2), and nitrogen (N2).
Atoms with low electronegativity like lithium have a weak attractive force for electrons because they have less ability to attract and hold onto electrons due to their smaller nuclear charge. This results in a weaker pull on electrons towards the nucleus compared to atoms with higher electronegativity.
Gold & Silver are different because they have different numbers of protons and electrons in their atoms.
The noble gasses are what you're talking about.
Isotopes have the same number of protons an electrons; the number of neutrons is different.
An ion forms when an atom gains or loses electrons, resulting in a different number of protons and electrons. This causes the ion to have different chemical and physical properties than its parent atom because the ion has a different charge and electron configuration. The charge of the ion affects its interactions with other atoms and molecules, as well as its reactivity and stability.
The statement is incorrect because isoelectronic means having the same number of electrons, but atoms of different elements have different numbers of protons and electrons. Elements X and Y can have the same number of electrons in their ions, but not in their neutral atoms.
Noble Gasses.
Because different atoms and molecules hold their electrons more or less tightly.
Plasma
Carbon and oxygen atoms are different because they have different numbers of protons, neutrons, and electrons. Carbon has 6 protons while oxygen has 8 protons, leading to differences in their chemical properties and how they interact with other atoms. Additionally, the arrangement of electrons in their outer shells is different, giving them unique characteristics and reactivity.
Neon, plus the other noble gasses, but these other noble gases also have additional electrons in outer shells.
Atoms try to imitate the noble gases in the periodic table by changing their electrons. Noble gases have stable electron configurations, so other atoms will gain, lose, or share electrons in order to achieve a similar stable configuration like the noble gases.
Different elements have different properties because of the arrangement of electrons in their atoms. The number of protons in the nucleus determines the element's identity, while the arrangement of electrons determines its properties. Factors like atomic structure, electron configuration, and bonding behavior contribute to the unique characteristics of each element.