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What elements are out of order in terms of the atomic mass?
In the periodic table, elements are generally arranged by increasing atomic number, but some are out of order based on atomic mass due to isotopes and electron configurations. Notably, elements like potassium (K) and argon (Ar) are examples where potassium (atomic mass ~39.1) appears before argon (atomic mass ~39.9), even though argon has a higher atomic mass. This occurs because the periodic table prioritizes the atomic number (number of protons) over atomic mass when ordering elements. Other examples include isotopes and the placement of certain transition metals.
What is the molecular formula for argon?
Argon is an element, not a molecule, and as such does not have a molecular formula, but rather a symbol - "Ar".
Atomic number of argon is 18 Will argon tend to form bonds with other elements?
Argon is a noble gas, which means it is very stable and does not typically form bonds with other elements. It already has a full outer electron shell, so it is considered inert and does not readily undergo chemical reactions.
What is argon made of?
Argon is a noble gas, which means it is an element on the periodic table with the symbol Ar and atomic number 18. It is an inert gas that is colorless, odorless, and tasteless. In its natural state, argon is a single atom gas that is not combined with any other element.
Why are Neon and Argon such nonreactive elements in the periodic table?
Neon (atomic number 10) and Argon (atomic number 18) mostly do not react with other elements because their outermost electron shells have a full complement of electrons. When two elements combine into a molecule they share electrons from their outermost electron shell. This happens when one element has a minimal number of electrons in its outer shell and the other element has an almost full complement of electrons in its outer shell. When they share electrons, they both have the equivalent of full outer electron shells. Since both Neon and Argon have full outermost shells by themselves they do not have a tendency to share electrons.
How does argon interact with you?
argon does not interact with other elements
What is used to find the atomic number of an element?
The atomic number of an element is the number of protons in the nucleus of its atom. It is typically found on the periodic table of elements, where elements are arranged in order of increasing atomic number. Each element has a unique atomic number that distinguishes it from other elements.
What is the relationship between the atomic number and the elements identity?
The atomic number of an element determines its identity. Each element has a unique atomic number, which is the number of protons in the nucleus of its atoms. This number defines the element and distinguishes it from other elements on the periodic table.
What element has a smaller atomic mass than krypton?
Argon (Ar) has a smaller atomic mass than krypton (Kr). Krypton has an atomic mass of about 83.80 u, while argon has an atomic mass of approximately 39.95 u. Other elements with smaller atomic masses than krypton include neon (Ne) and helium (He).
Why are elements argon and calcium's atomic mass close to each other?
Argon and calcium have atomic masses that are relatively close because they are located in adjacent periods on the periodic table. Argon, a noble gas in Group 18, has an atomic mass of about 40.0 u, while calcium, an alkaline earth metal in Group 2, has an atomic mass of approximately 40.1 u. Their similar atomic masses result from their proximity in the periodic table and the similar number of protons and neutrons in their nuclei. Additionally, variations in isotopic abundance can influence the exact values of atomic mass.
What element has 18 protons?
The element that has 18 neutrons is ARGON... Wow, why didn't look in a periodic table? Is easier ask here??? Actually, 18 is argon's atomic number, and it also has 18 protons and electrons.. but it has 22 neutrons. The number of neutrons = mass number - number of protons. Soo, the answer is Chlorine, 17 protons, 17 electrons and 18 neutrons
WHY THE ATOMIC RADIUS OF aRGON IS LARGER THAN ALL THE MEMBERS OF 3rd period?
The atomic radius of argon is larger than the other elements in the 3rd period because argon is a noble gas with a full outer shell of electrons, leading to increased electron-electron repulsion that causes the electron cloud to expand. In contrast, the other elements in the 3rd period are metals or nonmetals that typically lose or gain electrons to achieve a stable electron configuration, resulting in smaller atomic radii.
