Final Quiz - Atomic Structure And Chemical Bonding
(220).jpg "Final Quiz - Atomic Structure And Chemical Bonding")
A 15-question quiz on Atomic Structure and Chemical Bonding on www. Thechemwhiz. Piczo. Com. You'll need a calculator of some sort. Good luck.
- 1.This type of bond is brittle, and only conducts electricity when dissolved. Which bond is it?
- A.
Metallic Bonding
- B.
Ionic Bonding
- C.
Covalent Bonding
- 2.Element N has four isotopes. N-19, N-20, N-21, and N-22. Out of 100 atoms of the element N, 20 are N-19. 9 are N-20 52 are N-21 19 are N-22 Calculate the relative atomic mass of N.
- 3.Silicon has a proton number of 14. State it's electron configuration.
- 4.What property do metals have that allow them to be hit or shaped without breaking?
- A.
Conductivity
- B.
Density
- C.
Mobility
- D.
Malleability
- 5.Vanadium is more reactive than Strontium.
- A.
True
- B.
False
- 6.Beryllium has a charge of +2. Fluorine has a charge of -1. What's the chemical formula?
- A.
Be2F2
- B.
Be4F8
- C.
BeF2
- D.
Be2F
- 7.Which group of the periodic table has elements which are extremely reactive and silvery soft?
- A.
Alkali Metals
- B.
Noble Gases
- C.
Alkali Earth Metals
- D.
Transition Metals
- 8.Which property of an element does an isotope change?
- A.
Reaction rates
- B.
Malleability
- C.
Melting point
- D.
Shininess
- 9.The chemical Formaldehyde has a chemical formula of CH2O. The carbon atom needs and can share 4 electrons. The oxygen atom needs and can share 2 electrons. The hydrogen atoms need and can share 1 electron. State the structure that is true for this bond.
- A.
The oxygen atom has a single bond with the Carbon atom, and the hydrogen atoms have a double bond with the Carbon atom.
- B.
The Hydrogen atoms each have a double bond with the Oxygen atom, and the Oxygen atom has a single bond with the Carbon atom.
- C.
The carbon bond has a single bond with both hydrogen atoms, and a double bond with the oxygen atom.
- D.
The Carbon atom has a single bond with the Oxygen atom, and the Hydrogen atoms have a single bond with the Oxygen atom.
- 10.The electron configuration for the element in Group 13/Group 3, period 3 is 2,8,3.
- A.
True
- B.
False
- 11.Metallic bonds are generally stronger when...
- A.
There are more electrons in the sea of electrons.
- B.
There are more neutrons.
- C.
There are less electrons in the sea of electrons.
- D.
The metal can conduct electricity.
- 12.Element X has 2 electron shells. The outer shell has 6 electrons. It is a nonmetal. Which element is Element X?
- A.
Fluorine
- B.
Chlorine
- C.
Carbon
- D.
Oxygen
- 13.Beryllium (Be) has a charge of +2. Nitrogen (N) has a charge of -3. What's the chemical formula?
- A.
Be6N4
- B.
Be3N2
- C.
Be2N
- 14.Uranium has three isotopes. 0.005% is Uranium-234. 0.720% is Uranium-235. 99.275% is Uranium-238. Give the approximate relative atomic mass of Uranium, to four decimal places.
- 15.For a nice and easy final question, Which bond has the highest melting points?
- A.
Covalent
- B.
Ionic
- C.
Metallic
Questions: 20 | Attempts: 6187 | Last updated: Dec 14, 2020
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