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Chemistry for gateway unit #4
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Questions in this quiz (32)
1a [blank_start]period[blank_end] is a horizontal row of elements in the table
- Aperiod
2whose periodic law is now considered the current periodic law? [blank_start]Moseleys[blank_end]
- AMoseleys
3[blank_start]Mendeleev[blank_end] was one of the first to be partially sucessful in arranging the known elements in the 1870s into a chart that would allow the prediction of properties
- AMendeleev
4elements are arranged in vertical columns known as [blank_start]groups[blank_end]
- Agroups
5group [blank_start]1[blank_end] is also called the alkali metal groups
- A1
6[blank_start]metals[blank_end] which tend to have their atoms sometimes losing and sometimes gaining electrons during chemical change are generally found in groups 14-16
- Ametals
7the [blank_start]noble gases[blank_end] really belong to their own category since their atoms tend neither to lose or gain electrons
- Anoble gases
8[blank_start]ionization potential[blank_end] is the energy required to remove an electron from an atom
- Aionization potential
9the ionization exhibits periodically by [blank_start]decreasing[blank_end] as you proceed to the left along a horizontal row called a period
- Adecreasing
10as you proceed downward in a group the nuclear charge is ( increasing, decreasing)? [blank_start]increasing[blank_end]
- Aincreasing
11the [blank_start]atomic radius[blank_end] of an element is half of the distance between the centers of two atoms of that element that are just touching each other
- Aatomic radius
12generally the atomic radius [blank_start]decreases[blank_end] across a period in the periodic table from left to right
- Adecreases
13the [blank_start]first[blank_end] ionization energy is the energy required to remove one electron from the parent atom
- Afirst
14electron [blank_start]affinity[blank_end] reflects the ability of an atom to accept an electron
- Aaffinity
15[blank_start]electronegativity[blank_end] is a measure of the attraction of an atom for the electrons in a chemical bond
- Aelectronegativity
16atoms can react with one another to form new substances called [blank_start]compounds[blank_end]
- Acompounds
17a compound is unique both [blank_start]chemically[blank_end] and [blank_start]physically[blank_end]
- Achemically
- Bphysically
18sodium and chlorine when bonded together form what? [blank_start]table salt[blank_end]
- Atable salt
19[blank_start]covalent[blank_end] bonding occurs when two (or more) elements share electrons
- Acovalent
20some atoms can share multiple pairs of electrons forming [blank_start]multiple[blank_end] covalent bonds
- Amultiple
21what are the two subtypes of covalent bonds? [blank_start]h2[blank_end] , [blank_start]non polar bond[blank_end]
- Ah2
- Bnon polar bond
22whenever two atoms of the same element bond together, a [blank_start]non-polar[blank_end] bond is formed
- Anon-polar
23a [blank_start]polar[blank_end] bond is formed when electrons are unequally shared between 2 atoms
- Apolar
24in a [blank_start]network[blank_end] [blank_start]covalent[blank_end] solid , the atoms are bound to give each other by a network of covalent bonds
- Anetwork
- Bcovalent
25give 3 examples of network covalent substances. [blank_start]quartz[blank_end] , [blank_start]dimond[blank_end] , [blank_start]graphite[blank_end]
- Aquartz
- Bdimond
- Cgraphite
26a [blank_start]polyatomic[blank_end] ion is an ion consisting of a molecule with covalently bonded atoms
- Apolyatomic
27a simple [blank_start]straight line[blank_end] represents a bond lying approximately in the surface plane
- Astraight line
28a [blank_start]vector[blank_end] is a measurement that has a magnitude that has a magnitude and a directional component
- Avector
29give three examples of a scaler measurement. [blank_start]temperature[blank_end] , [blank_start]mass[blank_end] , [blank_start]speed[blank_end]
- Atemperature
- Bmass
- Cspeed
30electrons can move freely within these molecular orbitals and so each electron becomes detached fro its parent atom. the electron are said to be [blank_start]delocalized[blank_end]
- Adelocalized
31attractive forces between molecules is called [blank_start]intermoleclar forces[blank_end]
- Aintermoleclar forces
32a polyatomic ion is also referred to in older works as a [blank_start]radical[blank_end]
- Aradical
Information
- Description
- to help study for test
- Author
- Emily .Richardson
- Language
- English
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- History
- Created on 5 Feb 2021 · updated on 5 Feb 2021
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