How many proteins (p), electrons (e), and neutrons (n), are in one atom of^119_5

Question

How many proteins (p), electrons (e), and neutrons (n), are in one atom of^119_50Sn? #p #e #n 50 69 69 50 119 69 119 119 50 50 119 50 50 50 69 What are the values of n and l for the sublevel 4f ? 3, 2 4, 1 5, 3 2, 0 4, 3 The melting point (mp) of Ca is 845 degree C and that of Ba is 725 degree C. A reasonable prediction is that Sr is a ________ with a mp of about metal, 600 degree C nonmetal, 500 degree C salt, 785 degree C solid, 250 degree C metal, 785 degree C Which ground state configuration is incorrect? Na: 1s^22s^22p^63s^1 Zn: 1s^22s^22p^63s^23p^63d^104s^2 Cr: 1s622s^22p^63s^33p^63d^54s^2 Li: 1s622s^1 C: 1s^22s^22p^4 Which of the following electron configurations represents a diamagnetic atom? 1s 2s 2p (uparrow downarrow) (uparrow downarrow) (uparrow) () () (uparrow downarrow) (uparrow downarrow) (uparrow downarrow) (uparrow downarrow) (uparrow downarrow (uparrow downarrow) ((uparrow downarrow) (uparrow downarrow) (uparrow) (uparrow) All of the above None of the above The largest atom in Group VA is _____ and has valence electron configuration of __________ Bi, 5s^25P^3 N, 2s^22p^3 Bi, 6s^26p63 pb, 6s^26p^2 Bi, 4s^25p^3 The electron affinity of an atom, M, is the energy absorbed or liberated when M(g) rightarrow M(g)^+ + e^- M(g) rightarrow M(g)^+ + 2e^- M(g) + 2e^- rightarrow M(g)^- MX(s) rightarrow M^+(aq) + x^-(aq) MX(s) rightarrow (g) + x(g) Which of the following is NOT in order of increasing ionization energy? Ar

Explanation / Answer

42. (e)

we know that atomic number= number of protons = number of electrons

and Mass number= number of protons + number of electrons

so here number of protons= 50 (Atomic number of Sn)

and number of electron= 50

and number of neutron = 69

43. for 4f orbital, principal quantum number (n) = 4

and azimuthal quantum number(l) = 3

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