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The elements along each side of the dark line except Al are called .....
metalloids
Which has the smallest atomic size among them? [ LiĀ³, Beā“, Bāµ].
Bāµ
Which has larger atomic size? [ Cā¶ Or SiĀ¹ā“]
Si
The ionization energies of elements depend on the electronic structures.
True
Atomic radii [ increase, decrease, remain the same] across a period.
decrease
[ O, Ne, F] has the highest ionization energy.
Ne
The valance of carbon is [ 3, 4, 2].
4
Put them in order from the smallest size to largest size.[ Cl+, Cl, Cl-]
Cl+, Cl, Cl-
Put them in order from the largest size to smallest size.[ Cu+, Cu, CuĀ²+]
Cu, Cu+, CuĀ²+
Halogens have the highest electron affinities.
True
Noble gases are electronegative elements.
False
The complete electronic structure of oxygen is ......( atomic number=8)
1sĀ² 2sĀ² 2pā“
The essential electronic structure of Al is ..... (atomic number=13)
3sĀ² 3pĀ¹
The nucleus ifself has the ....... charge.
positive
[Fā€, F+, F] is stabilized by electron octet.
F-
The elements to the left of the the dark line are non-metals.
False
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