WILL GIVE BRANLEST IF CORRECT (LAST POINTS) The seismograph is an electronic device used by scientists to detect which of the following?
Group of answer choices

P waves, S waves, and surface waves

S waves and Surface waves

P Waves and S waves

Surface waves

explanation:

let the different atoms be x and y. each with four protons and same mass will be represented as follows.

mass number is number of protons + number of neutrons.

            and  

since, it is given that one has a negative charge while the other is neutral. therefore, there will be increase in number of protons and the atom will be represented as follows.

according to periodic table, mass number of beryllium is 9 and it has atomic number 4 so, the atoms will be and .  

the protons and neutrons will be located inside the nucleus whereas the electrons will be revolving around the nucleus.  

the answer is true. hope it .