Patrick Physical Science Module 13
Like it is in a plant or animal cell, the center of the atom is called the _______________.
Like it is in a plant or animal cell, the center of the atom is called the nucleus.
31P would also have how many electrons orbiting the nucleus in the nearest orbit?
31P would also have 2 electrons orbiting the nucleus in the nearest orbit
84Sr would also have how many electrons orbiting the nucleus in the nearest orbit?
84Sr would also have 2 electrons orbiting the nucleus in the nearest orbit.
A collection of atoms that all have the same number of protons is called a/an "_______________."
A collection of atoms that all have the same number of protons is called an "element."
A neutron has what kind of electrical charge?
A neutron has no electrical charge.
A proton has an __________ electrical charge.
A proton has an positive electrical charge.
An electron has what kind of electrical charge?
An electron has a negative electrical charge.
An oxygen atom that has mass number of 18 (an 18O atom) has ________ neutrons, while 16O has ________ neutrons.
An oxygen atom that has mass number of 18 (an 18O atom) has 10 neutrons, while an 16O atom has 8 neutrons.
Atoms (and therefore all of matter) are mostly empty what?
Atoms (and therefore all of matter) are mostly empty space.
Atoms have equal numbers of protons and what other atomic component?
Atoms have equal numbers of protons and electrons, so the atomic number also tells you how many electrons an atom has.
By itself, the neutron is not ___________.
By itself, the neutron is not stable.
True or False: A classification table is a schematic description of a system that accounts for its known properties.
False. A model is a schematic description of a system that accounts for its known properties.
True or False: In its second orbit, 31P would have 13 electrons orbiting the nucleus.
False. In its second orbit, 31P would have 8 electrons orbiting the nucleus.
True or False: On the periodic chart, the chemical symbol for an element is usually the first one or two letters from the Greek or German name of the element
False. On the periodic chart, the chemical symbol for an element is usually the first one or two letters from the English or Latin name of the element.
True or False: The neutron is the next Largest in terms of atomic mass.
False. The Proton is next largest in terms of atomic mass.
True or False: The number of neutrons tells a person what kind of atom is being observed.
False. The atomic number (hence the number of protons) tells a person what kind of atom is being observed.
If a person were to draw an atom of 31P according to the Bohr model, they would start by drawing a nucleus that had ________ protons and ________ neutrons.
If a person were to draw an atom of 31P according to the Bohr model, they would start by drawing a nucleus that had 15 protons and 16 neutrons.
In its fourth orbital, 84Sr would have ________ electrons orbiting the nucleus.
In its fourth, 84Sr would have 10 electrons orbiting the nucleus.
Oxygen has how many electrons and how many protons?
Oxygen has 8 electrons and 8 protons.
The Bohr model of 84Sr would have ________ protons and ________ neutrons in the nucleus.
The Bohr model of 84Sr would have 38 protons and 46 neutrons in the nucleus
Whose atomic model of the atom has the proton and neutron packed together in the center of the atom?
The Bohr model of the atom has the proton and neutron packed together in the center of the atom.
The ____________ is the smallest and least massive of the three atomic components.
The Electron is the smallest and least massive of the three atomic components.
Looking at the periodic chart, oxygen (O) has an atomic number of which of the following? a. 8 b. 16 c. 32 d. 64
The correct answer is (a). Looking at the periodic chart, oxygen (O) has an atomic number of 8
The _______________ _______________ is the sum of the numbers of neutrons and protons in the nucleus,
The mass number is the sum of the numbers of neutrons and protons in the nucleus.
The more correct atomic model is called the _______________-_______________ model.
The more correct atomic model is called the quantum-mechanical model.
True or False: The Bohr model is partially wrong in its description of atomic structure.
True. Although the Bohr model is partially wrong, it is still the first model students learn when it comes to the atom
True or False: In its second orbit, 84Sr would have 8 electrons orbiting the nucleus.
True. In its second orbit, 84Sr would have 8 electrons orbiting the nucleus.
True or false: The neutron is the heaviest of the three being just a bit more massive than the proton.
True. The neutron is the heaviest of the three being just a bit more massive than the proton.
One of the most important characteristics of an atom is its number of what, which is also called its atomic number? a. protons b. electrons c. neutrons d. antineutrinos
a. protons
In its third orbit, 31P would have how many electrons orbiting the nucleus? a. 4 b. 5 c. 6 d. 7
b. 5 31P would have 5 electrons orbiting the nucleus.
A proton is about how many more times massive than an electron? a. 500 times b. 1,000 times c. 2,000 times d. 10,000 times
c. 2,000 times
Which of the following is an isotope of 40Ca? a. 40Ar b. 41K c. 41Ca d. 45Sc
c. 41Ca
If the number of protons and the mass number are known, the number of what can be calculated? a. electrons b. quarks c. neutrons d. antineutrinos
c. Neutrons
Which of the following orbit the nucleus, much like the planets in the solar system orbit the sun? a. the antineutrinos b. the alpha particles c. the electrons d. the bohrons (named for Niels Bohr)
c. the electrons
In its third orbit, 84Sr would have how many electrons orbiting the nucleus? a. 0 b. 5 c. 8 d. 18
d. 18 84Sr would have 18 electrons orbiting the nucleus.
If it is not in the nucleus of an atom, a neutron will decay into which of the following? a. a proton b. an electron c. an antineutrino d. all the above
d. all the above
which of the following are not components of the atom? a. electrons b. protons c. neutrons d. rosenons
d. rosenons