Physics, 16.02.2022 21:10 missdee7623

A cobalt atom contains 27 protons, 32 neutrons, and 27 electrons. What is the atomic mass of cobalt?
A. 59 amu
B. 86 amu
C. 32 amu
D. 54 amu

Answers: 3

Show answers

Other questions on the subject: Physics

Physics, 21.06.2019 21:30, canyonrico05

One day, after pulling down your window shade, you notice that sunlight is passing through a pinhole in the shade and making a small patch of light on the far wall. you see that the patch of light seems to be a circular diffraction pattern. it appears that the central maximum is about 1 cm across and you estimate that the distance from the window shade to the wall is about 3 m. what is (a) the average wavelength of sunlight? (b) the diameter of the pinhole?

Answers: 3

continue

Physics, 22.06.2019 00:00, morgaaaan3835

Suppose that recording station n is located 200 km north of the epicenter of an earthquake, and recording station s is located 100 km south of the epicenter of the same earthquake. which of the following statements would be true?

Answers: 2

continue

Physics, 22.06.2019 04:00, benpark5370

All the simple machines make work easier to do by changing the or of a force. a. size; type b. work; type c. size; direction d. type; direction

Answers: 2

continue

Physics, 22.06.2019 10:10, xavierfox1721

In a simplified model of the human eye, the aqueous and vitreous humors and the lens all have a refractive index of 1.40, and all the refraction occurs at the cornea, whose vertex is 2.60 cm from the retina. what should be the radius of curvature of the cornea such that the image of an object 40.0 cm from the cornea’s vertex is focused on the retina?

Answers: 1

continue

You know the right answer?

A cobalt atom contains 27 protons, 32 neutrons, and 27 electrons. What is the atomic mass of cobal...