The plot below gives the electron density plot for a particular atomic orbital. Distance from the nucleus, r It is known that the orbital has 2 nodal planes. The principal quantum number for this orbital is This orbital belongs to a subshell 1. 2. estion 2 Element Z and X are compared. Element Z is sma element X Based on this comparison, which of the follo Electron density

2) The ground-state valence-shell configuration of a particular atom is 4s23d104p5. Theelement to which this atom belongs is a? noble gas. Halogen alkali metal transition metal metalloidchalcogen alkaline earth metal actinide lanthanide

4. Calcium has 20 electrons in total. The ionization energy for the first 18 have been graphed below. Provide appropriate labels for the two empty boxes. IONISATION ENERGY (kJ mol¹) 120000 100000 80000 60000 40000 20000 O IE3: REMOVAL OF ELECTRON FROM 3p 1 2 3 IE 17: REMOVAL OF ELECTRON FROM 2s 4 5 6 7 NUMBER OF ELECTRONS REMOVED 8 9 10 11 12 13 14 15 16 17 18

Predict the electron configuration for the C atom:    Predict the electron configuration for the P atom:   Predict the electron configuration for the V atom:     Predict the electron configuration for the Sb atom:     Predict the electron configuration for the Sm atom:   Predict the electron configurations of N3–    Predict the electron configurations of Ca2+   Predict the electron configurations of S2–   Predict the electron configurations of Cs1+     Predict the electron configuration of Cr2+     Predict the electron configuration of Gd3+

The electron configuration of an element is: 1s? 2s? 2p6 3s? 3p6 4s? 3d10 4p6 5s2 The Group and Period of the element are: Group 5 Period 1A Group 2B Period 5 Group 5 Period 1B Group 2A Period 5

Atoms of two adjacent elements in the periodic table have a total of 40 d electrons. Atom A has no p electrons in its valence shell but atom B has one electron in the p subshell of its valence shell. Element A is_ and element B is _

I am confused. It states that Nobel gasses have zero valence electrons. Then it says that group 8 elements have 8 valence electrons but group 8 are noble gases. How is this possible or am I wrong altogether? Which elements have zero valence electrons?

Give the indicated full or noble gas electron configuration Note: you can't do superscripts in questions answers, so format your answer without superscripts but with one space between each orbital. E.g. Li would be 1s2 2s1 instead of 1s22s The number in parentheses after the symbol is the element's atomic number. Full configuration: N (7) Full configuration: Si (14) Full configuration: Ti (22) Noble gas configuration: Ba (56) ( Noble gas configuration: Te (52) (99+ hp

please solve question 1 and  2, thanks alot sir

An atom with the element symbol X has 62 protons in its nucleus. For the 62nd electron, determine the ionization energy of the electron