a) Which element is least likely to lose an electron? Choose one: He, Be, Na, Mg, Ca, Sr, b) Why is the element you selected the least reactive?

Q: 7.49 Specify which of the following elements you would expect to have the greatest electron…

A: The element that could have greatest electronic affinity has to be given.

Q: Which of these elements is expected to have the greatest difference in its first and second…

A: Ans  Boron

Q: Which outer electron configurations would you expect to belong to a reactive metal? O ns² p² O ns' O…

A:

Q: Using their electron configurations, explain why Zn and Cd always form 2+ cations

A: The electronic configuration of Zn is 1s2 2s2 2p6 3s2 3p6 3d10 4s2 The electronic configuration of…

Q: When an alkali metal forms an ion, what is the charge of the ion? What is the charge of an alkaline…

A: Alkali metals are those metals which are present in the first group of the periodic table. The…

Q: which elements would most likely have a high second ionization energy? A. Those with a low first…

A: Ionization energy is the energy required to remove an electron from outer most shell of an gaseous…

Q: If the electron affinity for an element is a negative number,does it mean that the anion of the…

A: It is told that the electron affinity is negative which indicates that the energy is being released…

Q: If the electron affinity for an element is a negative number does it mean that the anion of the…

A:

Q: Below are the first seven ionization energies for a third period element. To which element do these…

A:

Q: Which element is the most reactive? A:Cs B:BA C: C D: S

A: The given elements are Cs, Ba, C, and S. From these elements Cs and Ba are the metal element and C…

Q: Which experience a greater effective nuclear charge: the valence electrons in beryllium or the…

A: Beryllium and nitrogen are present in the second period of the periodic table.

Q: The orbitals composing an atom’s valence electron shell (a) are arranged as concentric spheres (b)…

A: To determine the correct statement for the orbitals composing an atom’s valence electron shell

Q: a. Which type of ions – cations or anions – have smaller radii than the corresponding neutral atoms?…

A: Cations have smaller radii than their corresponding neutral atoms. During the formation of cations,…

Q: Write the electron configurations for Al, O, S and Ca.

A: Based on the Aufbau principle, electrons are filling in orbitals from low energy to high energy. The…

Q: Halogens are a family of elements that have very low melting points and have a tendency to gain…

A: Halogens belongs to the 17th  group. That are fluorine, chlorine why bromine dissolved iodine…

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: 4. Consider the first four ionization energies for an element we will call A. Ionization energy in…

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: Iodine has an atomic number of 53. What is the Electron Configuration of Iodine ion (I-1)? Zinc has…

A: Given that the atomic number of Iodine is 53. The atomic number of Zinc is 30. To find the…

Q: 3) Which of the following is isoelectronic with Mg? Ar, K*, S² or Ne s2-

A: The ions or atoms which possess the identical electron configuration are termed as isoelectronic…

Q: F, Cl, O List the three anions of the elements according to their increasing radius ion and explain…

A: Applying concept of periodic properties.

Q: An element with the electron configuration [noble gas] ns2 (n-1)d10 np4 has [number] valence…

A: We know that,  Number of valence electrons= number of electrons present in valence shell

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

A:

Q: Refer to Figure and explain why there are signifi cant decreases in ionization energy between some…

A: Argon has a stable electronic configuration due to filled 3s and 3p-orbital whereas, potassium has…

Q: The first ionization energy of nitrogen is 1402 kJ/mol while the first ionization energy of oxygen…

A: The ground-state electron configuration of nitrogen is--- 1s2 2s2 2p3 The valance shell electron…

Q: Rank the following ions in order of increasing first ionization energy: O2–, Mg2+, F–, Na+

A: Ionization energy: The amount of energy required for the removal of an outermost electron (closely…

Q: Arrange the following elements in order of decreasing first ionization energy: S, Ca, F, Rb, Si.

A: Ionization energy is the energy required for the removal of electrons from the outermost shell of an…

Q: 1) what does the inner electrons do that affect the outermost  electrons? 2) which  atoms  readily…

A: 1) The proton is situated inside the nucleus and the electrons are evolving around the nucleus in…

Q: Given the following elements, arrange them accordingly: Elements Increasing Ionization Energy…

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Q: when moving from left to right across a period, ionization energy is increasing? by which other…

A:

Q: higher ionization energy

A:

Q: Which element below would have the largest atomic radius?* Barium Beryllium Calcium Magnesium

A: Generally in a periodic table form left to right in a period the atomic radius decreases while in a…

Q: What is the shorthand electron configuration for a silicide ion?

A:

Q: What is the electron configuration of vanadium using the noble gas configuration? O [Ar]4s24d3 O…

A:

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: Rank elements from most metallic to least metallic. Fr, Sb, Cd, La, Se, S

A: Given elements is Fr, Sb, Cd, La, Se, S. We know in periodic table metallic character is decreses…

Q: 1

A: Dear student I have given answer to your question in the image format.

Q: What is ionization energy and what are its periodic trends? Explain. What is electron affinity and…

A:

Q: What's the full electron configuration of Li? O 1s2s! O 1s 2s2 O 1s°2s 2p! O 1s 2s²2p 2s!

A: Lithium has a atomic number 3 .It means the number of electron is also 3 . The way of filling the…

Q: Which element has the ground state electron configuration [Ar]4s²3d1°4p3? A) As B) Br C) Se D) Te E)…

A:

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

A: Metal can easily lose electrons to acquire stable Nobel gas configuration.

Q: 4. Consider this chemical equation: Br +e > Br + energy Which concept does this chemical equation…

A:

Q: Consider the elements selenium (Se) and bromine (Br). Whichhas the higher first ionization energy?…

A: From the given two elements which has higher first ionization energy and higher electron affinity…

Q: Using principles of atomic structure, explain why the first ionization energy of Po is less than…

A: The first ionization energy of Po is less than that of Se.

Q: Of the following, the element having the highest second ionization energy is:     B       Be…

A:

Q: How do you solve question 9?

A: Ionization energy:  It is the energy required to remove an electron from an atom in gas phase.

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: What is the electron affinity of an atom? Which groups on the periodic table have high electron…

A: To define : Electron affinity of an atom.

Q: Elements on the left side of the periodic table are more likely to form positive ions than those on…

A: Ionization energy is the energy required to remove electrons from the valence shell of an atom…

Q: When considering the first and second ionization energies of rubidium (Rb), the first ionization…

A: For any element, irrespective of its position, the second ionisation energy will always be greater…