Select the statement(s) that explain(s) the relationship between the arrangement of elements by size and first ionization energy. 1. The first set of paired electrons in a pp subshell experience a large amount of electron-electron repulsion, making the fourth electron in a pp subshell easy to remove. 2. The third unpaired electron in a pp subshell causes a lot of electron-electron repulsion among the orbitals, making the third electron in a pp subshell easy to remove. 3. A pp subshell with only one unpaired electron is extremely stable, making the fifth electron in a pp subshell easy to remove. 4. The two arrangements are the same because IE of elements increases from left to right and the radii of elements decreases from left to right. 5. A full ss subshell is able to shield a newly filled pp subshell from the nucleus, making the first electron in a pp subshell easy to remove.

What is the arrangement of these atoms in order of increasing atomic radius: C, Ca, Co, Cr, Cs, Cu ?

x |H|V R E S You will use the known periodic trends to compare properties for elements indicate with letters in this periodic table. Consider their relative positions for these questions. Your answers will be letters as indicated above, not the actual element symbol they would coordinate to. (Do not use a real periodic to answer this question.) ● Which alkali metal would be expected to have the lowest first ionization energy? BI H O N> T D LIQ A 0

2. In electron configurations for multielectron atoms, the orbitals are listed from lowest to highest energy. That being said, the order shows that the 5s orbital is listed before the 4d orbitals in a "proper" electron configuration. Please explain why this orbital ordering is unexpected and why it is believed to occur.

Write out in full the ground state configuration (all of the electrons) in the element bromine (atomic number = 35). There are three different abbreviated ways to write out the electron configuration using the symbolic form for the elements in group 18 (8A). Write out the one using the heaviest group 18 (8A) element.

7 please

Arrange the following atoms in order of decreasing first ionization energy (smallest last): P, F, N and Cl. Use sign ">" for arrangement (for example A>B>C>D).

How many electrons can fill all possible orbitals present in an element with n=8?

A3 What is the first p element in the 4th period to which Hund's rule must be applied when writing the orbital diagram?

Each of the statements below attempts to explain why some periodic property varies predictably among elements in the periodic table. Determine if each statement is true or false. Within a period, elements with higher atomic numbers have atoms of smaller radius because the valance electrons are in higher principal energy levels. Within a family, elements with higher atomic numbers have lower ionization energy because the valance electrons are in higher principal energy levels. Within a period, elements with higher atomic numbers have higher ionization energy because the valance electrons are in higher principal energy levels. Within a family, elements with higher atomic numbers have higher electronegativity because the atoms have higher effective nuclear charge. Within a period, elements with lower atomic numbers require more energy to remove an electron from the atom, because the valance electrons are in higher principal energy levels. Within a period, elements with lower atomic…