Part A:  Which element is in the 4th period on the periodic table?   Zr   Zn   Cl   C Part B:  Which element is in Group 13 on the periodic table?   Al   Na   Mg   Sc Part C:  How many energy levels (shells/rings) does Xe have (atomic# 54)?   3   4   5   7 Part D:  How many electrons does Xe have in its outer shell (valence electrons)?   2   4   6   8

Q: what is the precent mass of oxalat in (K3Fe(C2O4)3·3H2O, 491.3 g/mol)?

A:

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: Here are the first through the eighth ionization energies (in kJ/mol) for a single element in the…

A: Ionization energy is defined as the minimum energy required to remove an electron from the isolated…

Q: An element with the electron configuration [noble gas]ns2(n - 1)d10np3 has ____________ valence…

A: The electrons which are present in the outer most shell of the element is known as valence…

Q: Part A Rank the following five elements by ionization energy. Rank from highest to lowest ionization…

A: The general trend of ionization energy : Period : On moving across a period from left to right I.E…

Q: An element has the values of successive ionization energies (IE) listed below.  Determine the…

A: Ionization energy is defined as the energy required to remove an electron from the gaseous phase of…

Q: An element in the 4th row of the periodic table has the following ionization energies: I1 =…

A: The element lies in the 4th row of the periodic table, i.e. in the fourth period.

Q: An atomic cation with a charge of +1 has the following electron configuration: 1s 232p°3s²3p°3d'4s'

A: General representation of an atom is   XZA   where  X = element              A = atomic mass =…

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: What volume (in mL) of concentrated hydrochloric acid is necessary to prepare 6 mL of 50% (v/v)…

A:

Q: What element would form an ion with a charge of -2 -2 and the electron configuration shown below? 1s…

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Q: 8. Which of the following elements has the largest first ionization energy? A) CI B) S C) Si D) Mg…

A:

Q: imange elements in increasing order t electron affinituy Na, Li, Cs -)I, Br, F ) Na, Li, AI, 0

A: We know in the periodic table, the negative electron affinity increase as we go from left to right…

Q: words, for each sét choose "1" next to the ionization that would require the least energy, "2" next…

A: Ionization energy is the energy required to remove an electron from the outermost shell in its…

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: 9. Arrange the following ions in terms of increasing atomic radius (arrange then increasing from…

A:

Q: Given the following elements, select the two elements with the largest second onization energy: Mg…

A: The energy required to remove an electron from an isolated gaseous atom in its ground state is…

Q: 45. The first six ionization energies of an element are as follows (in kJ/mol): 944.5, 1794, 2736,…

A:

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: 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: An atomic anion with a charge of -2 has the following electron configuration: 1s 25 2p What is the…

A: The electron configuration of an element is written following the Aufbau principle, Pauli exclusion…

Q: In the Periodic Table below, shade all the elements for which the neutral atom has a valence…

A: Following elements are having the general electronic outermost configuration ns2 np6

Q: Arrange the following elements in order of increasing ionization energy (lowest first). = Mg = Al =…

A: Ionisation energy is defined as the energy needed to remove the outermost electron from any isolated…

Q: Which of the following ions has the largest atomic radii? 02- F- Ne Na* All of these ions have the…

A: Which of them having largest radii of them ?

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

A: A.

Q: Aluminum (Al) and silicon (Si) are in the same row (period) on the periodic table. The atomic radius…

A: We have to find out the reason why the aluminum has larger size compared to silicon and  size…

Q: Atomic radius is usually inferred from crystallographic data on elemental solids and is a crude…

A: The radius data given is, Li : 0.152 nm Be: 0.113 nm B: 0.088 nm C: 0.077 nm N: 0.075 nm O: 0.066 nm…

Q: elements:Cs      K     Al    Se    F    The element with the largest electron affinity is…

A: In the given question, we have to discuss the periodicity in properties of the given element. There…

Q: What do the electron structures of the alkali metals have in common? The outermost energy level…

A: The electron structures of alkali metals share a common feature that contributes to their similar…

Atoms and Molecules

An atom is the smallest unit of an element that possesses all the properties of that particular element. Molecules are the smallest unit of a substance that possess all the properties of that particular substance.