(1) copper oxide
(2) the positively charged ion
(3) Mg(ClO3)2
(4) chloride
(5) Valence electrons increase by one.
(1) Name the ionic compound represented by the following chemical formula: CuO. (1 point)
copper (II) oxide
copper dioxide
copper oxide
copper (II) oxygen
(2)Which of the following comes first in the name of an ionic compound?(1 point)
the number of ions present
the negatively charged ion
the neutral ion
the positively charged ion
(3)Write the chemical formula of the ionic compound magnesium chlorate. The magnesium (Mg) ion has a +2 charge. Chlorate (ClO3) has a −1 charge.(1 point)
Mg (ClO3)2
Mg (ClO 3 )
Mg2 (ClO3)
Mg 2 (ClO 3 )
(4)Which option is a negatively charged ion?(1 point)
chlorine
chlorite
chlorate
chloride
(5)When moving across a period from left to right in the periodic table, excluding transition elements, which trend occurs?(1 point)
Valence electrons decrease by one.
The energy levels decrease by one.
Valence electrons increase by one.
The energy levels increase by one.
1 answer
2 answers