subject
Chemistry, 11.10.2021 16:30 gomez36495983

Which of the following gives the correct numbers of protons, neutrons, and electrons, respectively, in a neutral atom of Potassium?
A) 19 protons, 20 neutrons, 19 electrons
B) 39 protons, 20 neutrons, 39 electrons
C) 20 protons, 19 neutrons, 19 electrons
D) 39 protons, 20 neutrons, 19 electrons

ansver
Answers: 2

Other questions on the subject: Chemistry

image
Chemistry, 21.06.2019 22:20, Brooke7644
Calcium hydride (cah2) reacts with water to form hydrogen gas: cah2(s) + 2h2o(l) → ca(oh)2(aq) + 2h2(g) how many grams of cah2 are needed to generate 45.0 l of h2 gas at a pressure of 0.995 atm and a temperature of 32 °c?
Answers: 2
image
Chemistry, 22.06.2019 12:00, carvajalj2520
Explain what happens at the saturation point when adding salt to water at room temperature.
Answers: 1
image
Chemistry, 22.06.2019 13:50, amandamac7339
Abeaker with 2.00×102 ml of an acetic acid buffer with a ph of 5.000 is sitting on a benchtop. the total molarity of acid and conjugate base in this buffer is 0.100 m. a student adds 4.70 ml of a 0.360 m hcl solution to the beaker. how much will the ph change? the pka of acetic acid is 4.740.
Answers: 1
image
Chemistry, 22.06.2019 14:00, ashlynneboogs0056
8.98 dm3 of hydrogen gas is collected at 38.8 °c. find the volume the gas will occupy at -39.9 °c if the pressure remains constant.
Answers: 3
You know the right answer?
Which of the following gives the correct numbers of protons, neutrons, and electrons, respectively...

Questions in other subjects:

Konu
Mathematics, 04.01.2021 07:20
Konu
Mathematics, 04.01.2021 07:20
Konu
English, 04.01.2021 07:20
Konu
History, 04.01.2021 07:20
Konu
Mathematics, 04.01.2021 07:20