Chemistry

Chemistry, 22.10.2020 22:01, youngg52

An atomic model shows 19 protons, 20 neutrons, and 19 electrons. What is the mass number of the atom? A. 39
B. 20
C. 58
D. 19

answer

Answers: 3

Show answers

Other questions on the subject: Chemistry

Chemistry, 21.06.2019 15:40, nadinealonzo6121

Which of the following might a chemist choose to study? a. glacier movement in alaska b. better ways to recycle plastics c. the effects of hurricanes on turtle populations d. the vibrations in bridges caused by big trucks

Answers: 2

Chemistry, 21.06.2019 20:30, Kaylinne1181

This chart represents the melting point of several substance. what besy explains the high melting point of the salt?

Answers: 2

Chemistry, 22.06.2019 10:30, Clivensp5

Skills of homo sapiens were found an excavation. the skulls were preserved because the bodies were frozen. so, these fossils are (blank) fossils. the image shows the evolution of skulls beginning 2 to 3 million years ago. based on the image, modern human skulls(blank) ape skulls.

Answers: 1

Chemistry, 22.06.2019 11:10, hannah2757

Which of the following shapes would represent a molecule with two bonded atoms and 3 lone pairs on only one of them , trigonal planar , bent , trigonal pyramidal , linear

Answers: 1

Do you know the correct answer?

An atomic model shows 19 protons, 20 neutrons, and 19 electrons. What is the mass number of the atom...

Questions in other subjects:

Konu

Mathematics, 01.07.2019 19:20

At a certain gas station, 40% of the customers use regulargas(a1), 35 % use plus gas (a2) and 25 % usepremium (a3). of those customers using regular gas, only30 % fill their tanks(...

Konu

English, 01.07.2019 19:20

Which of these works of fiction is based on leo tolstoy's time serving in the crimean war ? a. youth b. sevastapol sketches c. childhood d. boyhood...

Konu

Mathematics, 01.07.2019 19:20

Nolan plots a point at (0, 3) on the y-axis, he uses a slope of 2 to graph another point. he draws a line through the two points. which expulation represents nolan's line?

Konu

Mathematics, 01.07.2019 19:20

Select the correct answer. fiona has to plot a histogram of the given data. 82, 83, 89, 67, 65, 88, 66, 69, 83, 81, 94, 68, 82, 69, 86, 83, 88, 62, 64, 93 which f...

Konu

History, 01.07.2019 19:20

a historian is examining the concept of monarchy, or government ruled by a king or queen. which question might the historian ask if he were organizing his study by regi...

Konu

Biology, 01.07.2019 19:20

Cprevious 1, next environmental impacts on evolution mastery test there are several mechanisms through which reproductive isolation occurs. which situation...

Konu

Mathematics, 01.07.2019 19:20

Can sumone ..apply the distributive property to factor out the greatest common factor of all three terms . 9a-18b+21c=...

Konu

Mathematics, 01.07.2019 19:20

Select the correct answer. fiona has to plot a histogram of the given data. 82, 83, 89, 67, 65, 88, 66, 69, 83, 81, 94, 68, 82, 69, 86, 83, 88, 62, 64, 93 which f...

Konu

English, 01.07.2019 19:20

Which of the following tend to maintain listeners interest...

Konu

Business, 01.07.2019 19:20

Why does the u. s. textile industry lose jobs to foreign countries? a. some foreign countries have better working conditions. b. cheap imports can force u. s. companies out of bus...

Other tasks in the category: Chemistry More task