Graduation of properties of elements in the modern periodic table
Quiz by Mai Mohamed Elwazeer
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- Q 1/6Score 0
the atomic radius is used as a measurement of the atomic size of the atom and its measuring unit is ............
29picometer
kilometer
nanometer
meter
- Q1
the atomic radius is used as a measurement of the atomic size of the atom and its measuring unit is ............
picometer
kilometer
nanometer
meter
30s - Q2
in periods, by increasing the atomic number, the ........................
atomic size decrease
the atom becomes active
atomic radius increase
atomic size increase
30s - Q3
an element (x) whose atomic number is 13 so, the number of electrons in its ion is .......................
11
12
8
10
30s - Q4
"........................is the ability of the atom in covalent molecule to attract the electrons.
electronegativity
metals
polar compound
atomic size
30s - Q5
......................are covalent compounds in which the difference in electronegativity between elements forming their molecules is relatively high.
polar compound
electronegativity
atomic size
non- polar compound
30s - Q6
In groups: the atomic size increase
(from up to down) by increasing the atomic number (G.R)
because the attraction force between the positive
nucleus and the outermost electrons decrease.
due to increase of the number of energy levels.
because the attraction force between the positive
nucleus and the outermost electrons increase
due to decrease of the number of energy levels.
30s
