WorksheetsUnit 2 Vocab
Total questions: 26
Worksheet time: 14mins
the core of an atom......]
neutron
proton
electron
nucleus
the positive particles of an atom are.....
nuetrons
protons
electrons
ions
the nuetral parts of an atom are called
nuetrons
nucleus
ions
protons
the negative particles in an atom are.....
protons
neutrons
electrons
ions
the fixed amount of energy that a system can have
energy level
orbital
mass number
cation
Orbital
process by which an atom or a molecule acquires a negative or positive charge by gaining or losing electrons,
is an outer shell electron that is associated with an atom, and that can participate in the formation of a chemical bond if the outer shell is not closed
each of the actual or potential patterns of electron density that may be formed in an atom or molecule by one or more electrons, and that can be represented as a wave function.
a law stating that the elements, when listed in order of their atomic numbers (originally, atomic weights), fall into recurring groups, so that elements with similar properties occur at regular intervals.
Valence electron
an atom or molecule that has a net electrical charge.
the process by which an atom or a molecule acquires a negative or positive charge by gaining or losing electrons
the name given to a horizontal row of the periodic table.
an outer shell electron that is associated with an atom
a law stating that the elements, when listed in order of their atomic numbers, fall into recurring groups, so that elements with similar properties occur at regular intervals
periodic law
law of conservation of mass
newton's law of motion
law of conservation of energy
Period
a columnar diagram that shows the rock formations of a locality or region
the name given to a horizontal row of the periodic table
a set of chemical elements in the same vertical column of the periodic table
the points on a line, infinite in number, as the points in which a pencil of rays is intersected by a line
Which of these represents a group?
U, Na, K, Rb, Cs, Fr
B, C, N, O, F, Ne
Tl, Pb, Bi, Po, At, Rn
Ga, Ge, As, Se, Br, Kr
Cr, Mo, W, Unh
Ionization
a negatively charged ion, i.e. one that would be attracted to the anode in electrolysis.
a positively charged ion, i.e. one that would be attracted to the cathode in electrolysis.
the process by which an atom or a molecule acquires a negative or positive charge by gaining or losing electrons
each of two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei
ion
an atom or molecule with a net electric charge due to the loss or gain of one or more electrons
a group of atoms
the purest form of a substance
two or more elements mixed together
True or False: a cation is a negativley charged ion, i.e. one that would be attracted to the cathode in electrolysis.
True
False
True or False: an anion is a positivley charged ion, i.e. one that would be attracted to the anode in electrolysis.
true
false
Which of these make up the mass number of an atom
proton
nueclus
neutron
electron
Isotopes are....
a negativley charged particle
each of the actual or potential patterns of electron density that may be formed in an atom or molecule by one or more electrons, and that can be represented as a wave function
an atom or molecule with a net electric charge due to the loss or gain of one or more electrons
variants of a particular chemical element which differ in neutron number
Atomic mass unit
a unit of mass used to express atomic and molecular weights
he process by which an atom or a molecule acquires a negative or positive charge by gaining or losing electrons
the sum of the masses of its isotopes
the fixed amount of energy that a system described by quantum mechanics, such as a molecule, atom, electron, or nucleus, can have.
The average atomic mass of an element is....
the sum of its protons and neutrons
the sum of its valence electrons
the sum of the masses of its isotopes
the sum of its protons neutrons and electrons
Which of these are metals?
Wool
Iron
Wood
Aluminum
Phosphorus
Which of these are nonmetals?
Nitrogen
Gallium
Tin
Neon
Oxygen
a solid substance that has a conductivity between that of an insulator and that of most metals, either due to the addition of an impurity or because of temperature effects.
semiconductor
halogen
noble gas
isotope
lithium (Li), sodium (Na), potassium (K), rubidium (Rb), cesium (Cs), and francium (Fr) are known as...
alkaline earth metals
trasition metals
alkali metals
halogens
beryllium, magnesium, calcium, strontium, barium, and radium are known as...
noble gases
transition metals
alkali metals
alkaline earthmetals
any of the set of metallic elements occupying a central block in the periodic table
transition metals
semiconductors
halogens
alkaline earth metals
halogens
a solid substance that has a conductivity between that of an insulator and that of most metals
a class of chemical elements with similar properties;
five non-metallic elements found in group 17 of the periodic table
helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), radon (Rn), and oganesson (Og) are all types of...
alkali metals
noble gasses
earth metals
transition metals
