Answered

Welcome to Westonci.ca, your ultimate destination for finding answers to a wide range of questions from experts. Get detailed and accurate answers to your questions from a community of experts on our comprehensive Q&A platform. Join our platform to connect with experts ready to provide precise answers to your questions in different areas.

1) List the number of each subatomic particle in the following atoms (1 point):
a) A nitrogen atom with a mass of 17 amu.
b) An atom of potassium with a mass of 45 amu.
c) An atom of iodine with a mass of 137 amu.

Sagot :

ardni313

a. 7 protons, 7 electrons, 10 neutrons

b. 19 protons, 19 electrons, 26 neutrons

c. 53 protons, 53 electrons, 84 neutrons

Further explanation

Given

Atom and mass number

Required

The number of each subatomic particle

Solution

a. Nitrogen atom(atomic number = 7)

mass number = 17 amu

atomic number=number of protons=number of electrons(in neutral atom)

so number of protons=number of electrons = 7

mass number = protons+neutron

17 = 7 + neutrons

number of neutrons = 17-7=10

b. Potassium atom (atomic number = 19)

mass number = 45 amu

atomic number=number of protons=number of electrons(in neutral atom)

so number of protons=number of electrons = 19

mass number = protons+neutron

45 = 19 + neutrons

number of neutrons = 45-19=26

c. Iodine atom ((atomic number = 53)

mass number = 137 amu

atomic number=number of protons=number of electrons(in neutral atom)

so number of protons=number of electrons = 53

mass number = protons+neutron

137 = 53 + neutrons

number of neutrons = 137-53=84

Thank you for trusting us with your questions. We're here to help you find accurate answers quickly and efficiently. Thank you for your visit. We're committed to providing you with the best information available. Return anytime for more. We're glad you visited Westonci.ca. Return anytime for updated answers from our knowledgeable team.