Part A: How many valence electrons does krypton (atomic #36) have?  Part B: How many valence electrons does Chlorine (atomic #17) have? Part C: How many valence electrons does lead (atomic#82) have? Part D: How many valence electrons does barium (atomic #56) have?

Q: How can iodine (Z = 53) have a higher atomic number yet a lower atomic mass than tellurium (Z = 52)?

A: An atom is made up of three particles namely, protons, neutrons, and electrons. The protons and…

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: 73.) Which of the follo during reactionsiLi, K,

A: Since you have posted multiple questions, the answer for first question is given below. Kindly…

Q: Which statement below correctly explains ion formation in Group 16 (also called Group VIA)?…

A: Concept: Atom on the gain of electron acquires a negative charge. Atom on the loss of electron…

Q: How many Valence electrons are in Cl?

A: Number of protons = atomic number    In case of neutral atom ;  Number of protons = number of…

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: Effective nuclear charge of: 3p electrons in chromium 3s electrons in cobalt 2s electrons in…

A: Zeff can be calculated by slaters Rule in any element .          Formula for Zeff   = atomic Number…

Q: What happens when the compound HCl is formed?  Hydrogen transfers two electrons to chlorine.…

A: Hydrogen reacts with chlorine to form hydrogen chloride. The equation for the balanced chemical…

Q: How many electrons are in hydrogen

A: Given element,       Hydrogen (H)

Q: I need help with a chemistry question How many electrons does the element aluminum have in its…

A: Valance electrons: Valance electrons are electrons which are present in the outermost shell of an…

Q: The octet rule indicates that all of the noble gases have eight total electrons B all of the shells…

A: Octet rule indicates that:

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

A:

Q: Explain why Na, A1  0  This is asking why is it exothermic to add an electron to Na but endothermic…

A: The ease with which an electron can be added to an atom is defined as electron affinity. The heat…

Q: How can the periodic table be used to determine the number of valence electrons of a given element?…

A: The groups of the periodic table indicate the number of valence electrons of a given element. For…

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: A new element is discovered. The new element is named Tucsonium and has the chemical symbol Tu. It…

A: Each atom has tendency to acquire noble gas electronic configuration either by losing electrons or…

Q: Consider Mg²+ and 02. Which do you predict is larger and why? 1. Mg²+ is larger because magnesium is…

A: Atomic radius is a measure of size of atom. It is defined as the distance between the central…

Q: Identify the FALSE statement about ionic radii. A. Sr2+ is larger than Br B. Na* is smaller than Na…

A:

Q: What is the ionic charge of these elements?  Ca, K, Al, Mg,  S,  O,  P,  F

A: Given  Element         = Ca , K ,Al ,Mg ,S ,O, P ,F  Ionic Charge  =  ?

Q: How many valence electrons does Lithium (atomic#3) have? How many valence electrons does Xenon…

A: A.

Q: 7. Draw electron dot structures for the following elements: Na, Al, P, Cl, and Ar. Which are most…

A:

Q: An atom of bismuth (Bi) is approximately 320. picometers (pm) in diameter. Calculate the number of…

A:

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: The arsenic atom in AsCl3 would be expected to have a O 3- charge. O partial negative (8–) charge. O…

A:

Q: Describe the process you would go through to find the number of valence electrons for any of the…

A: The distribution of electrons in an atom can be shown with the help of electronic configuration. The…

Q: Hydrogen isotope( Atomic number =1) with 1 neutron and 1 electron. carbon isotopes ( Atomic…

A: Mass number :-        It is the sum of total number of protons(P)  and the neutrons(N) present in an…

Q: 8.) A spy is using elemental symbols to write messages. The number that is used is the sum of the…

A: The number used designates the elemental symbols and each number is the sum of the atomic number and…

Electron Affinity

When an element undergoes a chemical reaction, it either gains energy or loses energy. This gain or loss of energy is due to the phenomena that occur at atomic level. During reaction, atoms either gain electrons from other atoms or lose electrons to other atoms, and in that process, energy is produced.

P-Block Elements

Elements which are present on the right side of the periodic table are called p-block elements. In addition to the noble gases, they include the families of boron, mercury, nitrogen, oxygen and fluorine. These elements have diverse real-life implementations that we regularly experience around us. 

Metals and Non-metals

The periodic table is composed of metals, semi-metals and nonmetal elements. The physical and chemical properties of metals and nonmetals differ from each other. The study of metals and nonmetals will help one to understand the appropriate application of the particular element.