Question

periodic table organization: how are elements arranged in the modern periodic table? what happens to the number of valence electrons as you move from left to right across the periodic table? what is a group? list 3 elements that are in the same group. what do members of a group have in common? what is a period? list 3 elements that are in the same period. what do members of a period have in common? consider the following row in the periodic table of elements: li be b c n o f ne which elements are the most likely to conduct electricity? li

Explanation:

Step1: Arrangement of elements

By increasing atomic number.

Step2: Valence - electrons trend

Increases by 1.

Step3: Definition of group

Vertical column.

Step4: Example of group elements

Li, Na, K.

Step5: Common in group

Same number of valence electrons.

Step6: Definition of period

Horizontal row.

Step7: Example of period elements

Li, Be, B.

Step8: Common in period

Same number of electron shells.

Step9: Most conductive

Li (metals are good conductors, Li is metal here).

Answer:

How are elements arranged in the modern periodic table: By increasing atomic number.
What happens to the number of valence electrons as you move from left to right across the periodic table: Increases by 1.
What is a group: Vertical column.
List 3 elements that are in the same group: Li, Na, K.
What do members of a group have in common: Same number of valence electrons.
What is a period: Horizontal row.
List 3 elements that are in the same period: Li, Be, B.
What do members of a period have in common: Same number of electron shells.
Which elements are the most likely to conduct electricity: Li