How many protons, neutrons, and electrons are in 119 Sn 2+ tin ? a. 50 p, 69 n, 48 e b. 50 p, 69 n, 50 e c. 119 p, 50 n, 69 e d. 69 p, 50 n, 69 e e. 50 p, 119 n, 52 e

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orchidlouse622Lv1

6 Oct 2020

How many protons, neutrons, and electrons are in ¹¹⁹ Sn²⁺ tin ?

a. 50 p, 69 n, 48 e

b. 50 p, 69 n, 50 e

c. 119 p, 50 n, 69 e

d. 69 p, 50 n, 69 e

e. 50 p, 119 n, 52 e

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Manoj PandeyLv10

7 Dec 2020

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Show that the mass M of an atom is given approximately by Mapp =Amp, where A is the mass number and mp is the proton mass. For (a)1H, (b)31 P, (c)120 Sn, (d)197 Au, and (e)239 Pu, use the massvalues given in Table 42-1 to find the percentage deviation betweenMapp and M:

percentage deviation = ((Mapp - M)/M)*100

Table 42-1 information:
1 H --- Z=1 N=0 A=1 Stability=99.985% Mass=1.007825 Spin=1/2Binding Energy=NA
31 P --- Z=15 N=16 A=31 Stability=100% Mass=30.9737 Spin=1/2Binding Energy=8.48
120 Sn --- Z=50 N=70 A=120 Stability=32.4% Mass=119.902 Spin=0Binding Energy=8.51
197 Au --- Z=79 N=118 A=197 Stability=100 Mass=196.967 Spin=3/2Binding Energy=7.91
239 Pu --- Z=94 N=145 A=239 Stability=24100 y Mass=239.052 Spin=1/2Binding E=7.56

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