f the radius of X is greater than the radius of Y, then it is also likely that:

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

A: Since you have posted a question with multiple sub-parts, we are entitled to answer the first 3…

Q: How many valence electrons does this element have?

A: Given electron configuration :-  1s22s22p63s23p63d104s24p5  Total electrons = 35  so, the atomic…

Q: What is the electron configuration of iron? * 1s² 2s² 2p 3p6 3s² 4s² 3d6 O A 1s² 2s ² 2p 3s² 3p6 4s²…

A: Given,  What is the electronic configuration of iron.

Q: Compared to their neutral atom counterparts, ions will have smaller or larger atomic radii due to…

A:

Q: Arrange the following atoms in order of increasing atomic radii: Se, Sb, Br, and Te

A: The periodic table is a tabular form of all known elements. in this table all the elements are…

Q: The first ionisation energy of the chlorine atom is 1251 kJ/mol. Without looking at your text book,…

A: INTRODUCTION: Ionization energy is defined as the energy required to remove an electron from a…

Q: An element X has atomic number 34. Which of the following statements about the electron…

A: Given, Atomic number of element X = 34 For neutral atom of any element, the number of electrons are…

Q: Atoms of Group 1 elements have the lowest first ionization energy of all the elements on the…

A: We have atoms of group 1 has lowest 1st ionization energy , but we have largest difference in…

Q: Rank the following ions in order of decreasing ionic radius (largest → smalle Na*. Mg²+, S²- 0²-,…

A: Given -  Na^+, Mg^+2, S^-2, O^-2 ,F^-

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: 8. Write the electron configuration for the following ions: a. O?- b. Lit c. N3- d. Be2+

A:

Q: What is the electron configuration of a silicon atom? O 1s252p63s4 1s²2s²2p63s²3p² O 1s252p63p4…

A: The atomic number of silicon is 14 and have symbolic representation as Si.  It's belong to 14th…

Q: 67. The figure below is an example of porbital O d-orbital O forbital

A: The covalent bond is formed by the overlap of the atomic orbitals between the atoms of similar…

Q: which atom would have the largest effective nuclear charge for its valence electrons? C, Li, N, B,…

A: The effective nuclear charge is the net positive charge experience by valence electrons. As the size…

Q: Question is attached

A: NOTE : Since you've posted multiple sub-parts,we'll solve only first three sub-parts for you. To get…

Q: Why can potassium displace mercury in a chemical reaction?

A: Given : Why can potassium displace mercury in a chemical reaction?  Options :  A. because potassium…

Q: (a) Write the electron configuration for the element titanium,Ti. How many valence electrons does…

A: (a)The electronic configuration of any element is written keeping in mind three rules. Afbau…

Q: 12. 13. Which of the following lists of elements is ordered by increasing number of valence…

A: In the above question, the periodic trends on the elements are described. The physical properties of…

Q: Arrange the following chemical species in order of increasing atomic radius. Explain your…

A: a) Since on moving from left to right on the periodic table, the atomic radius of atom decreases due…

Q: (2) In which do we find only electron sharing? a) NO2 b) NaNO3 c) AsH3 d) CaO e) HBr f) Cl2 g)…

A:

Q: Consider the element potassium (atomic number = 19). What is its electronic configuration? How many…

A:

Q: . What is the total valence electrons of CN-?   a. 5 b. 4 c. 9 d. 10

A: Valence electrons are those electrons which are present in the valence/ outermost shell of the…

Q: Write general outer electron configurations (nsx npy ) for groups 6A and 7A in the periodic table.…

A: The periodic table is the arrangement of elements in periods and groups.

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

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Q: The first five ionization energies of an element in period 3 is shown in the graph below. Predict…

A: As told in the question, the element belongs to the 3rd period.A drastic change is observed from 3rd…

Q: Which has the larger atomic radius of the pairs Na and Be and what is the underlying reason why?

A: Atomic radii  is equal to the distance between the nuclei of an atom and its outermost shell…

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: Consider the following electron configurations to answer the questions that follow: (i) 1s2 2s2 2p6…

A:

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

A: a) The element which is least likely to lose an electron has to be identified b) The reason why the…

Q: Order each of the following sets of five atoms and ions according to increasing size. ("1" smallest…

A: The order of the size of the elements according to increasing size is given below

Q: X CO Which one of the following has the smallest atomic radius? Li, Na, Be, Mg Edit View Insert…

A: Atomic Radius is the distance from the center of the nucleus to the outermost shell.

Q: For each of the following groups, place the atoms and/or ions in order of decreasing size. b. Na,…

A:

Q: Arrange the following chemical species in order of increasing atomic radius. Explain your…

A: Atomic radii increases as we move down the group in the periodic table and decreases as we move…

Q: Use the electron configurations of He, Ne, and Ar to explain why these atoms normally do not combine…

A: According to Lewis theory, inert gas atoms are chemically not reactive.

Q: Q/ Write complete pictorial electron configurations (lines and arrows) for each ion below. Do not…

A: Mn+2 = 23 electrons  1s2    2s2   2p6   3s2   3p6   3d5   4s0  complete pictorial electron…

Q: Arrange these atoms and ions in order of increasing radius: S2, cr, Ar. O A. g2- < Cr <Ar O B.…

A: Given anions and atom are :  S2-, Cl-, Ar  Arrange the following in order of increasing radius = ?…

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: 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: Which substance can be described as cations bonded together by mobile electrons? Select one: O a.…

A:

Q: Electron configuration for sodium atom is: 1s2 2s2 2p6 3s1  Explain shortly on your own words the…

A: In sodium atom total number of electrons are 11 in which valence electron is present in "s" subshell…

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

A:

Q: Write general outer electron configurations (nsxnpy) for groups 6A and 7A in the periodic table. The…

A: The periodic table is the arrangement of elements in periods and groups.

Q: Arrange the following chemical species in order of increasing atomic radius. Explain your…

A: Radius of an atom is measured from the nucleus of the atom to the outermost shell. The elements in a…

Q: 12. An atom which has a Lewis dot structure containing 2 pairs of electrons, and 2 unpaired…

A: Lewis structure represents the systematic arrangement of atoms around the central atom. Electrons in…

Q: Which quantity must be determined experimentally inorder to determine the bonding atomic radius of…

A: a.  We cannot determine the bonding atomic mass using the the distance from the nucleus where the…