When sodium forms an ion, it loses electrons. How many electrons does it lose, and which orbitals do the electrons come from?

Q: Arrange the following atoms according to decreasing effective nuclear charge experienced by their…

A: The elements given are S, Mg, Al and Si belongs to 3rd period of the periodic table.

Q: Why does the size of an atom increase when it gains an electron? O The electron gained introduces…

A: When an atom gained an electron from other atom the electron occupy the outermost shell of that…

Q: Which atoms could have the valence electron configuration shown below? a. N3- b. O²- С. Ar d. CI'-…

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Q: Which of the following would require more energy to remove an electron? Why? * Sodium vs.…

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Q: What is shielding effect? Explain effective nuclear charge and calculate it for the last valence…

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Q: How many electrons can be accommodated in the first, second, and third electron shells of an atom?

A: Electron shells According to Bohr's theory, electrons revolve around the nucleus through a fixed…

Q: An unknown element is a nonmetal and has a valence electron configuration of ns2np4a. How many…

A: Since you are asked for multiple sub-parts, we are entitled to solve first three only.

Q: Do you expect the ionization energy of sodium (Na) to begreater than, less than, or equal to the…

A: Definition- " Ionization energy is the  minimum amount of energy required to remove the valence…

Q: Complete the following statements that apply to electron dot diagrams of the elements in group 15 on…

A: Group-15 elements like N, P, As, Sb, Bi, etc. have 5 valence electrons.

Q: Write the electronic configurations of the third-row elements: Na, Mg, Al & Si, and indicate or…

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Q: Write the electron configurations of the six cations that form from sulfur by the loss of one to six…

A: Electronic configuration of sulfur is 1s2 2s2 2p6 3s2 3p4 The atomic number of sulfur is 16 so it…

Q: What is ionization energy? What is the difference between the first ionization energy and second…

A: Valence electron can be removed from the neutral atom resulting in formation of cation.  The energy…

Q: How can we determine the number of valence electrons an element has?

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Q: There are several statements about valence electrons below. Which one is true?  They do not…

A: Definition of valence electron: A valence electron is an outer shell electron that is associated…

Q: What is the general trend in first ionization energy as we move down a column in the periodic table?…

A: Periodic table is a tabular form of display of chemical elements which are arranged by atomic…

Q: Explain why electron affinity increases across a period and decreases down a group. Explain why…

A: 1. electron affinity -it is the amount of energy released when an electron is added to a neutral…

Q: Explain how an atom’s valence electron configurationdetermines its place in the periodic table.

A: Atom's valence electron configuration means electronic configuration of the outermost shell of an…

Q: How does an ion form from an uncharged atom?

A: Atom can exist in two forms of ions. Cations-Formed by loss of electrons.…

Q: Elements in group 17 have how many valence electrons?

A: Group 17 belongs to Halogens . Halogens has seven valence electrons on their outer most electronic…

Q: Write the electron configuration for Al3+. Also, identify which of these electrons are valence…

A: Atomic no.of aluminium is 13 and it is a p-block element. Having electronic configuration: 1s2 2s2…

Q: Write the full electron configuration for tellerium (Te) list the number of valence electrons this…

A: Full or complete electronic configuration can be defined as the distribution of electrons of an atom…

Q: Which term refers to how strongly an atom of an element attracts electrons in a chemical bond with…

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

A: A.

Q: What is the valence electron configuration for the arsenic atom?  What is the valence electron…

A: Electronic configuration of an element can be determined by using atomic number. Valence…

Q: Which of the following elements have a tendency to lose electrons? O Na, Ca, Al OC N, O O F, CI, Br

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Q: Explain the relationship between Coulomb's Law and ionic bonds.

A: Ionic bonds consists of +ive ions called cations and -ive ions called anions.

Q: - Which of the following is wrong ?    A) Stable ion of the P element has -3 charge.  B) Valance…

A: Valence electrons are outermost shell electrons with highest value of 'n' principal quantum number.

Q: • Define ionization energy? How ionization energy does change from left to right along the periods…

A: The ionization energy is defined as amount of energy required to remove loosely electron from ground…

Q: How is the electron configuration of an anion different from that of the corresponding neutral atom?

A: Anion is formed when an electron is gained by neutral atom  for example of Fluorine  F + e-  ===>…

Q: Write the condensed electron configuration for antimony, Sb. b. Antimony can have a valence of -3,…

A: Electronic configuration of Sb: 1s2 2s2 2p6 3s2 3p6 3d6 4s2 3d10 4p6 5s2 4d10 5p3  condensed…

Q: Why does sodium want to lose an electron?

A: Outer electrons present in an atom are known as its valence electrons. There are various elements…

Q: What is the pattern of electrons and energy levels for both periods and rows of the periodic table

A: Answer -

Q: Electron arrangements with 8 electrons in the outermost shell tend to be more stable than other…

A: Atomic number of Calcium is 20. The symbol for Calcium atom is Ca. Electron configuration of calcium…

Q: Valence electrons in an atom of phosphorus are closer to the nucleus than the valence electrons of…

A: The objective of the question is to explain using the given options that why is that - "Valence…

Q: What is the pattern of valence electron configuration within the arrangement of elements on the…

A: An atom is mainly composed of three sub-particles; electrons, protons and neutrons. These particles…

Q: Part 4: Making Connections to the Atom 1. Using Coulomb's law and the relative force of attraction…

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Q: Identify the number of core and valence electrons for each atom. Ne: core electrons Ne: valence…

A: Given,                  Ne, Be and F     Required,                          Number of core electrons…

Q: What do all of the elements in a given horizontal row of the periodic table have in common?

A: The horizontal rows of the periodic table is known as the period. While the vertical columns are…

Q: valence electron

A: Valence electrons are defined as those electrons present in the outermost shell of an atom.

Q: Which requires more energy: removing a valence electron from its atom or removing an electron from…

A: The outermost shell of any atom is Valence shell and the electrons present in that shell are called…

Q: The total number of electrons, valence electrons, and valency of He, C, and N?

A: Given  Atom = He , C , N  Total Number of electron ,Number of Valence electron ,Valency = ?

Q: 23.) How does the electron configuration of polonium (Po) end (i.e., what are its valence…

A: The question is based on the concept of electronic configuration. we have to write valence shell…

Q: How much energy, in kilojoules, is required to remove all the third-shell electrons in a mole of…

A: We know that ionisation energy is the minimum amount of energy required to remove valence shell…

Q: Of Na and Mg, which would have the lower 2nd ionization energy, and why?

A: Given: Sodium and potassium  To find : which has lower second ionization energy.  Solution:…

Q: A. An element with the valence electron configuration 5s' would form a monatomic ion with a charge…

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Q: On your paper, write the full electron configuration for tellurium (Te). In the box below, list the…

A: The arrangement of the electrons in the different atomic orbital of an atom is known as the…

Q: Why are the electron affinities of Be and Mg highly positive? Be and Mg have a full octet. Be and Mg…

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Q: Where are the valence electrons in an atom?

A: Valence electrons are present in the outermost shell.