Question

Based on the naming rules for ions, which of the following is a negatively charged ion (not a polyatomic ion)?
chlorate
chlorate

chloride
chloride

chlorine
chlorine

chlorite
Answer
When moving across a period from left to right in the periodic table (excluding transition elements) which trend occurs?
The energy levels increase by one.
The energy levels increase by one.

The energy levels decrease by one.
The energy levels decrease by one.

Valence electrons increase by one.
Valence electrons increase by one.

Valence electrons decrease by one.
Answer
Which information about an atom can a period number give you?
the ionic charge it forms
the ionic charge it forms

how many energy levels it has
how many energy levels it has

how many bonds it will make
how many bonds it will make

the number of valence electrons it has
Answer
Fluorine has 7 valence electrons. Which charge is its ion likely to have?
1–
1–

1+
1+

5-
5-

5+
Answer
potassium, Group IA
calcium, Group IIA
iodine, Group VIIA
neon, Group VIIIA
Which two elements in the list would bond together based on their ionic charges?

(1 point)
Responses

potassium and iodine
potassium and iodine

calcium and neon
calcium and neon

potassium and neon
potassium and neon

calcium and potassium
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