Why are the noble gasses stable? Group of answer choices The balance of protons and neutrons The balance of protons and electrons The stability of the nucleus Their electron shell structure

Q: An atomic anion with a charge of -1 has the following electron configuration: 1.s²2s²2p 6 What is…

A: Since, Electronic configuration represent the electron present in orbital in which way. Arrangement…

Q: moles

A: In the balanced chemical reaction,  Number of atoms of each element in reactant side is equal to…

Q: A main group element with the valence electron configuration 2s22p3 is in periodic group__________…

A: Given electronic configuration is 2s22p3

Q: Element Atomic Number Symbol I Í J Å MUZOL 2 23 1 2 3 4 5 6 7 8 9 10 11 12 Atomic Radius…

A: The purpose of this question is to form graoh and explain the comparison of atomic radius,…

Q: Which element forms an ion that is smaller than its atom? O lead O fluorine O sulfur oxygen

A: Atoms are made up of subatomic particles like electrons, protons and neutrons. The electrons are…

Q: Rank the objects from lowest energy to highest energy nitrogen monoxide nitrogen dioxide dinitrogen…

A: No has lowest energy because of its linear structure and great bond strength. NO2 has a bent…

Q: Atomic mass →→ 12 C Atomic number → 6 O 8 O 16 6 O 32 O 16 4 O 8 1 1 H Using the information in the…

A: Valence electrons: Valence electrons electrons which are present in the outermost shell (energy…

Q: Which of these is the smallest? Arsenic Selenium Bromine Krypton Iodine

A: Answer:- This question is answered by using the simple concept of variation of atomic size across…

Q: Consider the following statements about ionization energy. Which ones are true? 1. It takes energy…

A: Ionization energy is defined as the amount of energy required to remove valence electron from…

Q: An atomic anion with a charge of -2 has the following electron configuration: 5 1s² 2.s² 2p³ What is…

A: Given , electronic configuration of anion with -2 charge .We need to provide it's symbol, number of…

Q: Decide which element probably forms a compound with chlorine that has a chemical formula most and…

A: Potassium is an element which is a metal. It has symbol 'K'.Chlorine is an element which is…

Q: 17 X This is a Lewis dot diagram: Which element is represented? O phosphorus (P) chlorine (CI) boron…

A: 17. It represents the Lewis dot diagram of Chlorine (Cl).

Q: Identify the cation or anion that will How many Identity the Nobel Gas electron electron can be…

A:

Q: An atomic anion with a charge of -2 has the following electron configuration: [Ar] 4s²3d¹04p6 What…

A:

Q: Which element has the fewest electrons in its valence shell? Cs O Br Mg P

A:

Q: How much energy (kJ) is required to remove all the 5s electrons in 8.78 g of strontium (Sr)? State…

A: The question is based on the concept of ionization energy. it is defined as the amount of energy…

Q: The formulas for several ionic compounds are shown below, with X representing an unidentified main…

A:

Q: natomic anion with a charge of -1 has the following electron configuration: 1s² 2s²2p³ What is the…

A:

Q: Lithium chloride (LICI) is a salt used in the production of lithium metal and is also used as an…

A: Ionic bond is formed by transfer of electrons. But covalent bond is formed by sharing of electrons.…

Q: How many valence electrons do the atoms of the following elements contain? 4 valence electrons 1. S…

A: the electrons present in the outermost shell or valence shell of the atom is known as valence…

Q: Rubidium (Rb) reacts with oxygen gas (O) to form a stable compound. In this compound, what is the…

A: The elements present in group 1 of periodic table are called Alkali metals  The Alkali metals are…

Q: Write the complete electron configuration for the manganese(II) ion. Using NOBLE GAS notation write…

A: 25Mn : 25 electrons 26Fe : 26 electrons

Q: Considering only ions with charges of +1, +2, -1 and -2, or neutral atoms, give the symbols for 4…

A: Ans Cs is a group 1 metal. It contains 55 electrons when neutral. A Cs atom loses one electron to…

Q: How many core electrons are in N-2?

A: Given :- Atomic symbol = N-2  To find :- number of core electrons  Atomic number of N = 7

Q: how many electrons would an sr atom lose or gain to become an ion

A: Strontium atomhas the following electronic configuration : Sr38 = 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6…

Q: charged

A: Atoms are neutral in nature, i.e., they contains equal number of protons and electrons in them.…

Q: Draw the structural formula of the following compounds .      Element element, ion or ionic group…

A: When a compound is formed if it covalent then octet is completer and when ionic electrons are…

Q: How many electrons are in the most likely ion formed from an atom located in group 5A and period 3?…

A: When a neutral atom gain or lose electron, then it is called as ion.  If it gains the electron then…

Q: What element has 10 electrons when it forms an anion with a 2−charge?   The elemental symbol of this…

A: Electrons are filled in a different atomic orbital in an atom. According to the Aufbau rule, the…

Q: The characteristics of two different types of reactions are shown below: Reaction A: Protons are…

A: ii) Valence electrons are involved in Reaction B but not in Reaction A. True

Q: Between which of the elements would have a delta (partial) positive charge. \delta+δ+   C - O…

A:

Q: What is the ionic charge for the copper ion in CuS? (Don't Google, this may not be a real compound)

A: Given ion : CuS

Q: Describe atomic structure; name and describe the parts of atoms, and their arrangement/location and…

A: The atom is the smallest unit of matter that may be not divided into smallest particle without…

Q: please answer these two questions.   1. write the electron configuration for magnesium atom.…

A: The electron configuration for magnesium atom is      Mg =  1s2 , 2s22p6 , 3s2

Q: Why couldn't a Na^+ Ion formed by adding a proton to a Na atom

A: Here we are asked to tell about reason why couldn't a Na+ ion form by adding a proton to a Na atom?…

Q: For each element, identify the charge of its most common ion.  Br    Na   Se   Al   +2

A: Elements in the periodic table can exist as ions. Some elements can exist as cations while some…

Q: Give two examples of elements that are able to form stable compounds with fewer than 8 electrons…

A: The stable compounds that have less than octet of electrons generally are from s-block or p-block…

Q: can you describe the properties of each component of atoms?

A: In this question we have to explain the properties of an atom

Q: The chemical reactivity of an element is determined by which of the following? Group of answer…

A: The chemical reactivity of an element indicates how spontaneously or vigorously that element can…

Q: An atomic cation with a charge of +2 has the following electron configuration: 1s² 2s ² 2p 3s² 3p6…

A: A cation is a positively charged ion formed when a neutral atom loses electrons.