Chem

Question 1

What is a proton?

Answer 1

A proton is a positively charged sub atomic particle found in the nucleus of an atom

Question 2

What is the mass of a proton

Answer 2

1 amu

Question 3

What is the atomic number of an element equal to?

Answer 3

The number of protons in the element’s nucleus

Question 4

What is a neutron

Answer 4

A neutron is an uncharged sub atomic particle in the nucleus of an atom

Question 5

What is the mass of a neutron

Answer 5

About the same as a proton, 1 amu

Question 6

What is an atom’s mass number

Answer 6

An atom’s number is equal to the number of protons plus the number of neutrons in the nucleus. Essentially, mass number is equal to the total mass of the atom ( because electrons give so little mass they are not accounted for

Question 7

What is an isotope

Answer 7

An isotope is an atom that shares an atomic number (number of protons) with another atom but has a different mass number by virtue of having more/less neutrons

Question 8

Where in relation to the element symbol are the atomic number and mass number located

Answer 8

Bottom left and top left, respectively

Question 9

What is an electron

Answer 9

An electron is a negatively charged particle that orbits the nucleus of an atom

Question 10

What is an energy shell

Answer 10

Energy shell are different distances at which electrons can orbit a nucleus with stability. The more energy an electron has, the further out they go