Question

Which are key features of the modern periodic table?

It consists of boxes, each containing an element name, symbol, atomic number, and atomic mass.
The elements in groups 1, 2, and 13 to 18 are referred to as the main group, or representative elements.
The elements in groups 3 to 12 are called the transition elements.
There are a total of seven groups and 18 periods.
The boxes are arranged into a series of columns, called groups or families, and rows, called periods.

Answer 1

The modern periodic table consists of boxes containing element information, with main group and transition elements. It is organized into groups and periods.

Step-by-step explanation:

Key Features of the Modern Periodic Table

The modern periodic table is a tabular arrangement of elements that provides important information about each element. Here are the key features:

1. Boxes: Each element is represented by a box containing its name, symbol, atomic number, and atomic mass.
2. Main Group: Elements in groups 1, 2, and 13 to 18 are called the main group or representative elements.
3. Transition Elements: Elements in groups 3 to 12 are referred to as transition elements.
4. Groups and Periods: The periodic table consists of seven groups (columns) and 18 periods (rows).
5. Arrangement: The boxes are organized into groups (families) and rows (periods).

The modern periodic table provides a systematic way of organizing and understanding the properties of elements.

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