Daniel Moore Exam Word Scramble
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Question | Answer |
The branch of chemistry that includes the study of materials and processes that occur in living things is | biochemistry |
The study of substances containing carbon is | organic chemistry |
Basic research is | carried out for the sake of increasing knowledge |
A physical property may be investigated by | melting ice |
Two features that distinguish matter are | mass and volume |
Group what in the periodic table contains only metals. | 2 |
An example of extensive physical property is | mass |
The most useful source of chemical information about the elements is a | periodic table |
Which is not a property of metals? | unreactivity |
A vertical column of blocks in the periodic table is called an | period |
The unit m3 measures | volume |
all of the following are examples of units except | weight |
The symbol for the metric unit used to measure mass is | g |
Standards are chosen because they | are reproducble in another labratory |
Quantative observations are recorded using | numerical information |
The SI unit for time is | second |
How many minutes are in a week? | 10,080 |
To calculate the density of an object | divide its mass by volume |
A change in the force of the Earths gravity on an object will affect its | weight |
Poor precision in scientific measurement may arise from | human error and limitations of the instrument |
the number of sig figs in the measurement 210 is | 2 |
Gamma rays | are electromagnetic waves |
Phosphorus 33 contains | 18 neutrons |
Sulphur 34 contains | 18 neutrons |
Nickel 60 has | 32 neutrons |
What is the atomic number for tungsten? | 74 |
Who called the atom the atom? | Democritis |
Chlorine 35 has | 17 protons |
What does the 218 represent in polonium 218? | the mass number |
Radioactive tracers are used | follow the movement of substance in a system |
What is the atomic number for aluminum | 13 |
Distance between 2 successive peaks on a wave is | wavelength |
An element with 8 electrons in its highest main energy level | is a noble gas |
Which group is the noble gases? | 18 |
The atomic sublevel witht the next highest energy level after 4p is | 5s |
The number of orbitals for the d sublevel is | 5 |
For the f sublevel the number of orbitals is | 7 |
The main energy levels of an atom are indicated by the | principal quantum numbers |
How many groups are found on the periodic table? | 18 |
As it travels through space electromagnetic radiation | exhibits wavelike behavior |
The part of the atoms where the electrons CANNOT be found is | nucleus |
To which group do lithium and pottassium belong? | alkali metals |
Mendeleev attempted to organize the chemical elements based on their | properties |
Mendelev predicted that the spaces in his periodic table | represents undiscovered elements |
Argon, krypton, and xenon are | noble gases |
the horiontal row of blocks in the periodic table is | period |
One half the distance between the nuclei of identical atoms that are bonded together | atomic radius |
The person whose work led to a periodic table based on increasing atomic number | Mosely |
Valence electrons | are in the highest energy level |
The number of valence electrons in Group 17 elements is | 7 |
How many protons does an atom of Antimony have? | 85, 51, or 74. None of these is answer. |
Atoms are ___ when they are combined? | more stable |
If the atoms that share electrons have an unequal attraction for the electrons, the bond is | polar |
A covalent bond results when ____ are shared? | electrons |
Most chemical bonds are | partly ionic and partly covalent |
An octet is equal to | 8 |
The chemical bond formed when 2 atoms share electrons is called | covalent bond |
To draw a Lewis structure one must know the | number of valence electrons in each atom |
How many double bonds are in the Lewis structure for hydrogen flouride? | none |
Malleability and ductibility are characterisitics with substances with | metallic bonds |
If a material can be shaped or extended by physical pressure which property does the material have? | Malleability |
Created by:
Daniel Moore
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