subject
Chemistry, 04.01.2020 16:31 bravooyessenia

The symbol ca-40 denotes that

a. a calcium atom contains 40 protons
b. a calcium atom contains 40 electrons
c. a calcium atom contains 40 neutrons
d. a calcium atom has a mass number of 40

ansver
Answers: 1

Another question on Chemistry

question
Chemistry, 22.06.2019 02:00
The alkali metals (group 1) consist of lithium (3), sodium (11), potassium (19), rubidium (37), cesium (55), and francium (87). they are soft, metallic solids with low densities and low melting points. based on the data shown in figure 1, how many valence electrons do alkali metals share?
Answers: 3
question
Chemistry, 22.06.2019 09:20
Sugar is dissolved in water. which is the solute? sugar neither both water
Answers: 1
question
Chemistry, 22.06.2019 12:20
Achemistry student weighs out 0.306 g of citric acid (h3c6h5o7), a triprotic acid, into a 250 ml volumetric flask and dilutes to the mark with distilled water. he plans to titrate the acid with 0.1000 m naoh solution. calculate the volume of naoh solution the student will need to add to reach the final equivalence point. be sure your answer has the correct number of significant digits.
Answers: 3
question
Chemistry, 22.06.2019 18:50
Which of the following is a conclusion that resulted from ernest rutherford’s scattering experiment? (will mark brainliest) a. the nucleus is negatively charged b. the atom is a dense solid and is indivisible c. the mass is conserved when atoms react chemically d. the nucleus is very small and the atom is mostly empty space
Answers: 3
You know the right answer?
The symbol ca-40 denotes that

a. a calcium atom contains 40 protons
b. a calcium a...
Questions
question
Business, 02.11.2020 14:00
question
Computers and Technology, 02.11.2020 14:00
question
Mathematics, 02.11.2020 14:00
question
English, 02.11.2020 14:00