Simple quiz on atomic structure, chemical bonding and the periodic table.
A) They have the same number of neutrons but different number of protons.
B) They have different number of neutrons and protons but same number of electrons
C) They have different number of neutrons and electrons but same number of protons
D) They have different number of neutrons but same number of protons.
A) 1s2 2s2 2p6 3s2 3p6 4s1
B) 1s2 2s2 2p6 3s2 3p4 4s2
C) 1s2 2s2 2p6 3s2 3p5 4s1
D) 1s2 2s2 2p6 3s2 4s1 3p6
Cu63 - 30 Cu 65 - 70
Cu 63 - 30 Cu 65 - 70
Cu 63 - 40 Cu 65 - 60
Cu 63 - 60 Cu 65 - 40
A) 1s2 2s2 2p6
B) 1s2 2s2 2p6 3s2 3p6 4s1
C) 1s2 2s2 2p6 3s2
D) 1s2 2s2 2p3
A) Electrons in their ground state will occupy orbitals in order of their energy level; the lowest energy levels are always filled first.
B) The orbitals of a subshell must be singly occupied with electrons of parallel spin before they can be occupied in pairs.
C) An orbital cannot contain more than 2 electrons. If 2 electrons occupy the same orbitals, they must have opposite spins; i.e. one up spin and one down spin
D) None of the above
It will have a low boiling point.
It will conduct electricity when molten.
An aqueous solution of the compound will not conduct electricity.
It will have a giant covalent structure.
Xenon molecules are diatomic
Xenon supports combustion
Xenon has two outer electrons
Xenon is unreactive
Direction of field
Direction of current
Direction of electrons
Direction of resultant force
Hard, high melting point.
Soft, low melting point
Soft, high melting point
Hard, low melting point.
Both metals form acidic oxides.
Francium has more electrons in its outermost shell than potassium.
Francium has a lower melting point than potassium.
Francium reacts less quickly with water than potassium.
Covalent bond, 4 atoms joined to each carbon atom
Ionic bond, 4 atoms joined to each carbon atom
Covalent, 3 atoms joined to each carbon atom
Ionic, 3 atoms joined to each carbon atom
Both elements are metals
Both elements contain 3 electrons in the outermost shells.
Both elements form acidic oxides.
Both elements have the same proton number.
The elements change from being metals to non-metals.
The number of neutrons in an atom decreases.
The electrical conductivity of the elements increases.
The number of protons in an atom decreases.
The same element and have similar properties
Different elements but have similar properties
Different elements and different properties
The same element but of different properties
Sodium Fluoride, Sodium Chloride
Potassium Fluoride and Chlorine
Sodium Fluoride and Chlorine
Here's an interesting quiz for you.