Which statement about the elements in the modern periodic table is correct?
Most elements are metals and they are found on the right
Most elements are metals and they are found on the left and in the middle
Most elements are non-metals and they are found on the right
A modern periodic table arranges atoms in rows and columns. What names are given to the these rows and columns?
The rows are shells and the columns are groups
The rows are groups and the columns are periods
The rows are periods and the columns are groups
Which statement about metals and non-metals in the periodic table is true?
There are more non-metal elements than metal elements
Metals are on the left of the stepped line, and non-metals are on the right of the stepped line
Metals are on the right of the stepped line, and non-metals are on the left of the stepped line
Which of these properties does a typical non-metal element have?
It is a good conductor of heat
It has a high density
It is a poor conductor of electricity
An atom of an element has the electronic structure 2,8,8,2. What is its atomic number?
18
16
20
An atom of an element has the electronic structure 2,8,7. Which group of the periodic table is it in?
2
7
8
Which atom will have similar chemical properties to the atom with:
Atomic number = 12
Mass number = 24
Electronic structure 2,8,2
The atom with atomic number = 11, mass number = 24, electronic structure 2,8,1
The atom with atomic number = 6, mass number = 12, electronic structure 2,4
The atom with atomic number = 20, mass number = 40, electronic structure 2,8,8,2
Which element is located in Group 4 and Period 3?
Gallium (Ga)
Silicon (Si)
Germanium (Ge)
Which of the following is a property of metal?
Poor conductor of heat
Brittle
Lustrous
What is the name given for elements located between Groups 2 and 3?
Transition metals
Alkali metals
Halogens