Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Chapter 16
DHS PS Ch. 16 - Properties of Atoms and the Periodic Table (2015/2016)
| Question | Answer |
|---|---|
| What is the smallest piece of matter that still has the properies of the element called? | atoms |
| What has an electrical charge of 1+? | protons |
| What part of the atom has no or neutral charge called? | neutrons |
| What has an electrical charge of 1-? | electrons |
| Where are protons and neutrons located in an atom? | nucleus |
| Where are electrons located in an atom? | in the electron cloud surrounding the nucleus |
| Protons and neutrons are made up of smaller particles called? | quarks |
| How many quarks are known to be in extistence? | 6 |
| What is the sixth quark called? | top quark |
| What do scientists use to represent atoms? | scaled models |
| What did Dalton's original model of the atom consists of? | solid sphere |
| What is the name of the model that shows electrons traveling in specific energy levels around a nucleus of protons and neutrons? | electron cloud |
| What is the most useful method for describing atoms? | constructing a model |
| An atom that contains 6 positive charges and 6 negative charges has what kind of charge? | no net |
| Democritus believed that the universe was made of what two things? | empty space and atoms |
| Atoms consist of a positively charged center called a? | nucleus |
| The negatively charged particles outside the nucleus of an atom are called? | electrons |
| What is the name of the model of the atom that reflects the unpredictable motion of the electron? | electron cloud model |
| Aristotle believed that matter was? | uniform throughout |
| The discovery of the sixth quark was accomplished by? | studying proton collisions |
| Which atomic particle carries a 1+ charge? | proton |
| What is mostly composed of the protons and neutrons in the nucleus? | atomic mass |
| What is the unit of measurement for atomic particles that is one-twelth the mass of a carbon atom contaiing six protons and six neutrons called? | atomic mass unit (amu) |
| The number of protons in an atom is called the? | atomic number |
| What do we call the sum of the number of protons and neutrons in the nucleus of an atom? | mass number |
| When atoms of the same element have different numbers of neutrons we call this an? | isotope |
| Different isotopes can have _______ properties. | different |
| How do you find the number of neutrons? | mass number - atomic number |
| How do you identify an isotope? | Look at the name of the element followed by the mass number |
| What is the weighted-average mass of an element's isotopes called? | average atomic mass |
| The average atomic mass is closest to its most? | abundant isotope |
| Where does the electron cloud model of an atom place protons, neutrons, and electrons? | protons and neutrons are in a center nucleus surround by electrons traveling in specific energy levels |
| How do atomic number and mass number differ? | atomic number = the number of protons in an atom; mass number = the sum of the number of protons and neutrons in an atom |
| When calculating the mass of an atom, the mass of an electron is? | negligible (not significant) |
| The mass of a proton is measured in? | atomic mass units |
| What are atoms of the same element that have different numbers of neutrons called? | isotopes |
| What is the sum of the number of protons and neutrons called? | mass number |
| How do you find the atomic mass of an element? | the number of protons + the number of neutrons of an atom |
| An isotope of Boron will have a different number of? | neutrons |
| The atomic number of an element is also the number of? | protons in the nucleus of an atom of that element |
| How are elements organized on the periodic table as you move from left to right? | by increasing atomic number |
| Who devised the first periodic table based on atomic mass? | Dmitri Mendeleev |
| How was Mendeleev's periodic table organized? | by increasing atomic mass and organized and grouped by similar chemical properties. |
| Who arranged the elements by atomic number rather than atomic mass? | Henry G. J. Moseley |
| How are families in the periodic table arranged? | in groups of elements with similar properties |
| Elements in the same group have the same? | number of electrons in their outer energy level or valence electrons |
| Energy levels can have a maximum number of ______ that they can hold. | electrons |
| How many electrons can energy level one contain? | no more than 2 |
| How mane electrons can energy level two contain? | no more than 8 |
| What do we use the element symbol and dots to represent outer energy level electrons? | electron dot diagrams |
| What are the horizontal rows of elements that contain increasing number of protons and electrons called? | periods |
| How are the elements calssified? | metals, nonmetals, or metalloids |
| What are the building blocks of other naturally occurring elements? | hydrogen and helium |
| What spreads heavier elements througout the universe? | supernovas |
| What do elements in the same group have in common? | chemical properties due to the same number of valence electrons. |
| What is the method of representing atoms and the electrons in their outer energy levels called? | electron dot diagram |
| What are the three general groups of elements? | metals, metalloids, and nonmetals |
| The name of every element can be abbreviated using a ______? | chemical symbol |
| Where on the periodic table are the metals located? | left side |
| All alements in Group 1 would have how many dots in their electron dot diagram? | one |
| A capital letter or a combination of a captial letter and a small letter that is used to represent an element is called? | chemical symbol |
| The horizontal rows of elements on the periodic table are called? | periods |
| An average of the masses of all the isotopes that occur in nature for an element is the? | average atomic mass |
| The vertical columns of elements on the periodic table are called? | groups or families |
| Elements in the middle of the periodic table, groups 3-12, are called the? | transition metals |
| The number of protons in an atom is the? | atomic number |
| Protons and neutrons can be subdivided into these by colliding them? | quarks |
| the center of an atom where proton and neutrons are located is the? | nucleus |
| A total count of the neutrons and protons in an atom is the? | mass number |
| Atoms of the same element but with different numbers of neutrons are? | isotopes |
| Elements that are found on the right side of the periodic table are? | nonmetals |
| Elements that have some properties of both metals and nonmetals that are located along the "staircase" are called? | metalloids |
| The particles that move about the nucleus and have a negative charge are? | electrons |
| An atoms is comprised of what three components? | proton, neutron, and electron |
| What has a charge of 1+? | proton |
| What is the smallest part of an element that retains all the properties of the element? | atoms |
| Where at on the peroidic table would you find the lightest elements? | top left |
| Where at on the periodic table would you find the heaviest elements? | bottom right |
| If you change the number of protons in an atom, you change the? | element |
| What method would be most useful for describing atoms? | constructing a model |
| The number of neutrons plus protons is called? | mass number |
| What are the 6 quarks names? | Up, Down, Strange, Charm, Bottom, Top |
| Name the scientist that offered proof that Democritus was correct? | John Dalton |
| What did Aristotle believe? | That matter was uniform throughout and was not composed of smaller particles |
| How many atoms stacked one on top of another would it take to equal the thickness of a sheet of aluminum foil? | 24,400 |
| This scientist's model of the atom consisted of a ball of cookie dough with chocolate chips (electrons) embedded throughout. | Joseph John Thompson |
| This scientist's model of the atom consisted of a positively charged nucleus that was surrounded by electrons. | Ernest Rutherford |
| This scientist's model of the atom consisted of electrons that traveled in fixed orbits that could jump between orbits as they absorbed or released specific amounts of energy. | Niels Bohr |
Created by:
basmith
Popular Physical Science sets