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25 Cards in this Set
- Front
- Back
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Which group is the chalcogen family? |
Group 16. |
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Which family of elements is least likely to react with other elements? |
The Noble Gases. |
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Atoms in the same groups, are most likely to have the same number of? |
Valence electrons |
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Atoms located near the beginning of the periodic table, are located there because? |
Tend to have a small nuclear mass |
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Most of the mass of an atom is located in the? |
Nucleus |
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As you move down a column on the periodic table the radius of the atoms tends to ? |
Get larger |
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The atomic number of an atom is determined by? |
The number of protons in the atom. |
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Which group on the periodic table are the most reactive non-metallic elements found? |
Group 17 |
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Electrons is the same as? |
Protons and atomic number |
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Atomic mass is? |
Neutrons + Protons |
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Metals are most likely to? |
Hold there valence electrons loosely and bond with non-metals by transferring electrons |
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What is a double bond? |
When 2 atoms share 2 pairs of electrons (4 electrons) |
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Electrons are..? |
attracted to the nucleus of an atom and repelled by other electrons |
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Which elements are not solid at room temperature? |
Mercury and Bromine |
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Atoms of metals tend to have.. |
few valance electrons, which are easily removed from the atom |
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Elements that are gases at room temperature tend to be located |
towards the upper right of the periodic table |
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Describe population within an ecosystem and give an example. |
Population within an ecosystem is, at each trophic level, the number of individuals of a given species, usually this # of species will be smaller then the level before Ex, there will be more mice at the primary consumer level then there will be snakes at the secondary consumer level. |
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Density Dependent Limiting Factors: |
The way these factors affects an ecosystem rely on the density of an ecosystem. - Disease/Parasitism -Competition -Predation -Crowding -Stress |
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Density Independent Limiting factors: |
These factors do not depend on what size the population is. -Temperature -Sunlight -Natural Disasters -Human activity -Behaviors -Physical characteristics of organisms |
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Carrying Capacity |
This is the largest capacity of a given species that an ecosystem can support. |
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What are the three levels of biodivesrsity? |
1. Within a population 2. Within a community 3. Within an ecosystem |
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Is it possible for an ecosystem to be both species rich and species even. Explain |
Yes, |
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What is Simpsons index? |
A way of measuring species rich and evenness /carrying capacity |
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how do you convert from km/h to m/s? |
divide by 3.6 |
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how do you convert from m/s to km/h? |
multiply by 3.6 |
