Chemistry I S1 Exam Review
on 3x5 What is the formula for aluminum nitride?
AlN
Which element has this electron configuration: [Ne]3s²3p¹
Aluminum
3 x 5 What is the name of this ionic compound: Al₂O₃
Aluminum Oxide
3x5What is the chemical formula for iron (II) oxide?
FeO
3x5What is the chemical formula for iron (III) hydroxide?
FeO(OH)
What element has this electron configuration: [Rn]7s²?
Fl = Flerovium
If 241 over 94 Pu decayed by emitting a beta particle, what would be the name of the isotope produced?
Plutonium
What element has the electron configuration {Kr]4d¹⁰5s²5p²?
Sn (Tin)
What element has the electron configuration: 1s²2s²2p⁶3s²3p⁶4s²3d¹⁰4p⁶5s²4d¹⁰5p⁶6s²4f¹⁴5d¹⁰6p¹
Tl (Thallium)
Which elements below are placed in order of increasing numbers of protons from left to right? a. Ca, Sc, Ti, V b. Ca, K, Sc, Ti c. Ti, Sc, Ca, K d. K, Rb, Na, Li
a. Ca, Sc, Ti, V
Draw and predict the shape for the following:
a. H2S b. PH3 c. Xe d. CH4
Use a periodic table to answer the question. Which pair of elements would you expect to have the most similar properties? a. germanium, Ge, and silicon, Si b. copper, Cu, and gallium, Ga c. nitrogen, N, and oxygen, O d. hydrogen, H, and helium, He
a. germanium, Ge, and silicon, Si
What group is the least reactive group of elements in the periodic table?
noble gases
How many lone pairs does this molecule have?
1
What is the maximum number of electons that can occupy a d-subshell?
10
Which isotope is produced when tantalum-182 emits a beta particle?
182 74 w
Which of the following represents an isotope of fluorine, F? 19 7 F 19 8 F 19 9 F 9 9 F
19 9 F
Which isotope is produced when osmium-191 emits a beta particle?
191 77 lr
3X5What is the name of this compound KNO₃ ?
Potassium Nitrate
on 3x5 What is the formula for lithium oxide?
Li₂O
3x5 What is the name of this compound: Mg(OH)₂ ?
Magnesium Hydroxide
3x5What is the formula for the ionic compound named magnesium nitride?
Mg(NO₃)₂
On 3x5 What is formula for magnesium chloride?
MgCl₂
3x5What is the chemical formula for manganese (III) oxide?
Mn₂O₃
3x5What is the formula for ammonium sulfate?
(NH₄)₂SO₄
Describe an electron (location, charge, mass)
*electrons have a negative charge *can be free or bound to nucleus
Describe a proton (location, charge, mass)
*protons have a positive charge *found in center of atom *equal and opposite of electron
3x5What is the charge on the ammonium ion in ammonium nitrate?
+1 charge
3x5 What is the charge on the carbonate ion in calcium carbonate?
-2 charge
What is the electron configuration for phosphorus, P?
1s²2s²2p⁶3s²3p³
How many bonds does a hydrogen atom usually form in a covalent compound?
2
How many lone pairs does this molecule have?
2
How many valence electrons does calcium have?
2
How many electrons are in a neutral calcium atom?
20
Suppose an astatine-212 isotope were to emit an alpha particle. What isotope would be produced?
208 83 Bi
Which of the following represents an isotope of neon, Ne? 21 10 Ne 21 9 Ne 21 11 Ne 21 5 Ne
21 10 Ne
How many valence electrons are in an element with an electron configuration of 1s²2s²2p¹?
3
How many bonds does a carbon atom often form in a covalent compound?
4
How many protons does the element beryllium, Be, have?
4
How many neutrons does the element beryllium, Be, have?
5
How many valence electrons does an antimony atom have?
5
What is the number of protons in a sulfur atom?
6
How many valence electrons are in an element with an electron configuration of [Ar]4s²3d¹⁰4p⁵?
7
How many electrons are in a neutral atom of gold?
79
Which of these elements would you expect to have the greatest reactivity? B, Au, Ar, Ba
B
3x5What is the name of this compound BaSO₄?
Barium Sulfate
Which element has this electron configuration: [He]2s²2p¹ ?
Boron
on 3x5 Describe how an ionic compound is formed.
By the complete transfer of electrons from a metal to a nonmetal -- results, ions achieve an octet.
What type of clothing is appropriate to wear in the laboratory?
Closed toe shoes Long sleeve shirt Long pants Safety goggles Lab coat
3x5What is the chemical formula for chromium (II) bromide?
CrBr₂
3x5What is the chemical formula for copper (I) iodide?
CuI
3x5What is the chemical formula for copper (II) sulfate?
CuSO₄
on 3x5 An atom that has seven valence electrons is in which group?
Group 17 (Halogens)
Use a periodic table to answer the question. What group and period can you find bromine in?
Group 17 Period 4
Which two things should you do in the case of a chemical spill on your skin or clothing?
Inform instructor and safety shower
What type of bonding holds the atoms of magnesium chloride, MgCl₂ together?
Ionic Bond
An atom of which element has 19 electrons when neutral?
K - potassium
3x5What element has the electron configuration: 1s²2s²2p⁶3s²3p⁶4s²3d¹⁰4p⁶?
Kr (Krypton)
The bond between I atoms ad I2 molecule is _____________
a. ionic and is formed by the sharing of two valence electrons. b. covalent and is formed by the sharing of two valence electrons. c. covalent and is formed by the transfer of two valence electrons. d. ionic and is formed by the transfer of two valence electrons.
Which pairs of elements would you expect to have the most similar properties? a. arsenic As and silicon Si b. fluorine F and chlorine Cl c. nitrogen N and oxygen O d. hydrogen H and helium He
b. fluorine F and chlorine Cl
Which of these pieces of lab equipment would you use to measure the volume of a liquid most accurately? a. test tube b. graduated cylinder c. beaker d. hot plate
b. graduated cylinder
What is the correct ordering of the groups from left to right in the periodic table? a. alkaline earth metals, alkali metals, halogens, noble gases b. alkaline earth metals, alkali metals, halogens, noble gases c. alkali metals, alkaline earth metals, halogens, noble gases d. noble gases, alkali metals, alkaline earth metals, halogens
c. alkali metals, alkaline earth metals, halogens, noble gases
Which pair of elements would have the most similar properties based on their locations on the periodic table? a. oxygen O and fluorine F b. fluorine F and neon Ne c. neon Ne and krypton Kr d. selenium Se and bromine Br
c. neon Ne and krypton Kr
What is the electron configuration for an element with atomic number 17?
chlorine
Use a periodic table to answer the question. Which groups of elements would you expect to have the most similar properties? a. fluorine, F, nitrogen, N and silicon, Si b. cadmium Cd, zinc, Zn and iodine, I c. nitrogen, N, oxygen, O, and fluorine, F d. argon, Ar, krypton, Kr and xenon, Xe
d. argon, Ar, krypton, Kr and xenon, Xe
The half-life of an atom is the amount of time it takes for _____________________.
decay
Iodine can be found in what group in the periodic table?
halogens
Which metals tend to be most reactive?
halogens
