isotopes and average atomic mass\n1. using the chart below, describe the three subatomic particles that make…
isotopes and average atomic mass\n1. using the chart below, describe the three subatomic particles that make up atoms.\n| name | location in atom | charge | mass (heavy or light) |\n| | | | |\n| | | | |\n2. define each term:\natomic number:\nmass number (aka atomic mass):\n3. for the element below, clearly label the atomic number and the atomic mass.\n22 ti titanium 48\n4. complete the table below:\n| element | atomic # | atomic mass | # protons | # neutrons | # electrons |\n| | 11 | | | | |\n| | | | | 10 | 9 |
Answer
Brief Explanations:
Protons are in the nucleus, have a positive charge, and are heavy. Neutrons are in the nucleus, are neutral in charge, and are heavy. Electrons are outside the nucleus, have a negative charge, and are light.
Atomic number is the number of protons in an atom's nucleus. Mass number (atomic mass) is the sum of protons and neutrons in an atom's nucleus.
For titanium (Ti), the atomic number is 22 (the number above the symbol) and the atomic mass is 48 (the number below the symbol).
For the first row with Al: Atomic number is 13, atomic mass is 27, number of protons is 13 (equal to atomic number), number of neutrons is 27 - 13=14, number of electrons is 13 (in a neutral atom, electrons equal protons). For the second row with atomic number 11: It is sodium (Na), atomic mass is typically 23, number of protons is 11, number of neutrons is 23 - 11 = 12, number of electrons is 11. For the third row: Since electrons are 9 and neutrons are 10, assuming a neutral atom, protons are 9 (equal to electrons), atomic number is 9 (fluorine, F), and atomic mass is 9+10 = 19.
Answer:
Name
Location in Atom
Charge
Mass (heavy or light)
Proton
Nucleus
Positive
Heavy
Neutron
Nucleus
Neutral
Heavy
Electron
Outside nucleus
Negative
Light
Atomic Number: The number of protons in an atom's nucleus. Mass Number (aka atomic mass): The sum of protons and neutrons in an atom's nucleus.
