Measurement and Properties of Matter
Nucleus
Electrons
Periodic Table and Ions
Covalent Compounds
100
380.0 mL to dL
What is 3.8 dL?
100
When a radioactive isotope is unstable and breaks down releasing a particle with two protons and two neutrons that is identical to a helium nucleus.
What is alpha decay?
100
Electron configuration of nitrogen.
What is 1s22s22p3?
100
What is the name of the group on the periodic table that would contain an element with the electron configuration of 1s22s22p5?
What are the halogens?
100
The name of SF2.
What is sulfur difluoride?
200
What volume of gold will weigh exactly 42 g?
What is 2.2 L?
200
The number of neutrons in cesium-128.
What is 73 neutrons?
200
The wavelength of light emitted when an electron moves from n=4 to n=1 in the Bohr Model of the atom.
What is 97 nm?
200
Which of the following elements has the largest atomic radius? N, O, P, S
What is phosphorous?
200
The formula for dinitrogen tetroxide.
What is N2O4?
300
The matter classification of salt and water.
What is a homogeneous mixture?
300
The identity of an element with 108 neutrons and 73 protons.
What is Tantalum?
300
The noble gas configuration for copper.
What is [Ar]4s13d10?
300
Which of the following has the lowest ionization energy? B, C, Al, Si
What is carbon?
300
What is the geometry of NO3-1?
What is trigonal planar?
400
The number of significant figures in 0.0004500 m.
What is 4 significant figures?
400
This occurs when a large nucleus is hit with a neutron breaking apart releasing new isotopes, neutrons, and energy.
What is fission?
400
The number of electrons in P-3.
What is 18 electrons?
400
The formula for titanium (II) oxide.
What is TiO?
400
What is the geometry of BeCl2?
What is linear?
500
The correct number of digits in the measurement of the paperclip shown below.
What is 2 digits (measurement of 2.3 cm)?
500
Cesium-139 has a half-life of 30.17 years. How long will it take 50 grams of cesium-139 to decay to 1.5625 grams?
What is 150.85 years?
500
The color of light emitted when an electron moves from n=4 to n=2 in the Bohr Model of an atom.
What is blue light?
500
The name of FeCl2.
What is iron (II) chloride?
500
The three exceptions to the octet rule and the number of electrons they need to be stable.
What is hydrogen needs 2, beryllium needs 4, and boron needs 6?