Physics, 30.03.2020 22:10 robertjoy19

10 points
4. The atomic number of krypton is 36. If the mass number of krypton is
84, which answer choice shows the number of subatomic particles inside
and outside the nucleus of the krypton atom?
O
inside nucleus= 36 outside nucleus= 36
O
inside nucleus=36 outside nucleus=48
inside nucleus= 84 outside nucleus= 36
O
inside nucleus= 84 outside nucleus= 48

Answers: 2

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Answers

Answer from: 00manray

The number of subatomic particles inside and outside the nucleus of the krypton atom is as follows: inside nucleus= 84 outside nucleus= 36.

SUBATOMIC PARTICLES:There are three subatomic particles in the atom of an element. These three subatomic particles: proton, electron and neutron. The atomic number is the number of protons in the atom. In a neutral atom, the number of protons and electrons are the same. Hence, the number of protons and electrons in krypton atom is 36. The number of neutrons of an atom can be calculated by subtracting the number of protons from the mass number. The number of neutrons in krypton atom is (84 - 36) = 48.Therefore, the number of subatomic particles inside and outside the nucleus of the krypton atom is as follows: inside nucleus = 84 outside nucleus = 36.

Learn more about subatomic particles: link

Answer from: Manuel2019

inside nucleus= 84 outside nucleus= 36

Explanation:

Recall that an atom is made up of three subatomic particles named protons, neutrons and electrons. The proton and neutrons are found inside the nucleus while electrons are found outside the atom nucleus.

So, given that:

Atomic number of krypton = 36

Mass number of krypton = 84

The number of protons = 36 (same as atomic number)

The number of neutrons = (Mass number - Number of protons) 84 - 36 = 48

Thus, particles inside nucleus = (protons + neutrons) = 84

While particles (electrons) outside nucleus = 36 (same as the atomic number which is 36).

Answer from: Quest

an obstruction

Answer from: Quest

answer: the rock sample is a sedimentary rock.

explanation:

it is given that:

mass of rock sample, m = 2.7 g

volume of rock sample, $v = 1.1 cm^{3}$

so, density of rock sample will be

$density = \frac{mass}{volume}$

$\rho =\frac{2.7}{1.1}g/cm^{3}\\\\\rho =2.45 g/cm^{3}$

since, the density of rock sample is $2.45 g/cm^{3}$ . hence, the rock sample is a sedimentary rock, whose densities varies between $2g/cm^{3} - 2.6 g/cm^{3}$ .

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4. The atomic number of krypton is 36. If the mass number of krypton is
84, wh...

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