Question | Answer |
When chemicals interact with one anther they can be said to have reacted. | true |
When shared electrons are shared equally so that they spend about the same amount of time with each atom, the resulting atom is likely to be polar. | true |
A double bond is stronger than a triple bond. | false |
A diatomic molecule is one having two of the same kind of atom bound together. | true |
Halogens often form diatomic molecules. | true |
The lanthanoids (or lanthanides) are also called the rare earth metals. | true |
None of the actinoid (or actinide) series elements are radioactive. | false |
Polar molecules tend to dissolve readily in water. | true |
Atoms consist of a few particles moving about in mostly empty space. | true |
Atom Group Name of: 1A | alkali metals |
Atom Group Name of: 2A | alkaline earth metals |
Atom Group Name of: B groups | transition metals |
Atomic Group Name of: 3A to 6A | post-transition elements |
Atomic Group Name of: 7A | halogens |
Atomic Group Name of 8A | noble gases |
Symbol: Mg | Element: magnesium |
Symbol: Mn | Element: manganese |
Symbol: O | Element: oxygen |
Symbol: Cu | Element: copper |
Symbol: Fe | Element: iron |
Symbol: Au | Element: gold |
Symbol: Ag | Element: silver |
Symbol: Pb | Element: lead |
Symbol: K | Element: potassium |
Symbol: Na | Element: sodium |
name of molecule: CH4 | molecular formula: methane |
name of molecule: H20 | molecular formula: water |
name of molecule: CO2 | molecular formula: carbon dioxide |
name of molecule: O2 | molecular formula: oxygen |
name of molecule: C2H2 | molecular formula: ethylene |
A substance that can be readily shaped is said to be | malleable |
Semiconductors are found among the | metalloids |
Atoms on the far right- hand side of the periodic table that are completely satisfied with their number and arrangement of electrons. They are called the | noble gases |
An ion is an atom that bears a charge. A ion carrying a positive charge is called a | cation |
An ion carrying a negative charge is called an | anion |
Name two types of chemical bonding | ionic and covalent |
Which of these two types is the stronger ionic or covalent? | covalent |
In writing a chemical equation, the reactants are shown on the ?-hand side of the arrow and the products are shown on the ?-hand side. | reactants on the left and products on the right |
List four properties of metals | 1. shine when polished 2. malleable & ductile 3. conduct heat 4. conduct electricity |