Quiz
CHEMISTRY I: ATOMS AND MOLECULES
Create a free account to finish this quiz
Save your progress and see your final score.
Already have an account? Sign in
Questions in this quiz (20)
1Energy is the capacity to do work
- ATrue
- BFalse
2The neutron also is located in the atomic nucleus
- ATrue
- BFalse
3The neutron has no charge, and a mass of slightly over 1 amu
- ATrue
- BFalse
4The electron is a very small particle located in the nucleus.
- ATrue
- BFalse
5The atomic number is the number of protons and neutrons an atom has
- ATrue
- BFalse
6Isotopes are also the source of radiation used in medical diagnostic and treatment procedures.
- ATrue
- BFalse
7 Carbon has three isotopes, of which carbon-12 and carbon-14 are the most well known
- ATrue
- BFalse
8Molecules are the smallest particle into which an element can be divided.
- ATrue
- BFalse
9An orbital is also an area of space in which an electron will be found 10% of the time.
- ATrue
- BFalse
10The major energy levels into which electrons fit, are (from the nucleus outward) K, L, M, and N. Sometimes these are numbered, with electron configurations being: 1s22s22p1, (where the first shell K is indicated with the number 1, the second shell L with the number 2, etc.).
- ATrue
- BFalse
11Ionic bonds are destroyed when atoms become ions by gaining or losing electrons
- ATrue
- BFalse
12Covalent bonds form when atoms share electrons.
- ATrue
- BFalse
13Formation of covalent bonds in methane. Carbon needs to share five electrons, in effect it has four slots. Each hydrogen provides an electron to each of these slots.
- ATrue
- BFalse
14The molecule methane (chemical formula CH4) has four covalent bonds, one between Carbon and each of the four Hydrogens
- ATrue
- BFalse
15Chemical reactions don't occur in nature, and some also can be performed in a laboratory setting.
- ATrue
- BFalse
16The water molecule is thus polar, having positive and negative sides
- ATrue
- BFalse
17 Formation of a crystal of sodium chloride: Each positively charged sodium ion is surropunded by seven negatively charged chloride ions;
- ATrue
- BFalse
18Orbitals have a variety of shapes
- ATrue
- BFalse
19Atoms of an element that have differing numbers of neutrons (but a constant atomic number) are termed ions
- ATrue
- BFalse
20Elements are substances consisting of one type of molecule
- ATrue
- BFalse
Information
- Description
- Quiz on CHEMISTRY I: ATOMS AND MOLECULES, created by anabelen on 20/05/2014.
- Author
- anabelen
- Language
- Español
- Views
- 319
- Rating
- No ratings yet Rate this quiz