Periodic Table2

Question 1

Who is considered the Father of the Periodic Table?

Answer 1

Dmitri Mendeleev

Mendeleev is credited with creating the first version of the periodic table.

Question 2

How did Mendeleev arrange the elements in the periodic table?

Answer 2

Elements were arranged in rows by increasing atomic weight and in columns by their reactivity

Mendeleev left blank spaces for undiscovered elements and prioritized similar reacting elements.

Question 3

What is the horizontal row in the periodic table called?

Answer 3

Period

The periods are labeled from 1 to 7.

Question 4

What is the vertical column in the periodic table called?

Answer 4

Group

The groups are labeled from 1 to 18.

Question 5

What does the periodic law state?

Answer 5

When elements are arranged by increasing atomic number, there is a periodic repetition of their physical and chemical properties

This means properties change as you move across a period.

Question 6

How do the properties of elements change within a period?

Answer 6

The properties change as you move from left to right

This indicates a trend in the physical and chemical behavior of the elements.

Question 7

What happens to the pattern of properties as you move from one period to the next?

Answer 7

The pattern of properties within a period repeats

This reflects the periodic nature of the elements.

Question 8

What do elements in the same group have in common?

Answer 8

1. Same number of valence electrons
2. Same chemical and physical properties.
3. They were formed the same kind of ions

Question 9

What are some characteristics of metals?

Answer 9

Metals are good conductors of heat and electricity, have high luster, are ductile, and are malleable

Approximately 80% of elements are classified as metals.

Question 10

Fill in the blank: ______% of elements are metals.

Answer 10

80

This highlights the predominance of metals in the periodic table.