Question

the periodic table there are 118 elements, all with different atomic numbers. they are organized into a table which the elements are separated into groups based on repeating properties. the elements are listed in order from left to right and top to bottom by atomic number. the organization of the periodic table allows you to easily compare the properties of one element (or a group of elements) to another element (or group of elements). elements have a name, but an elements name often not convenient to use. it is these chemical symbols as in chemical formulas. each element can be represented by a one - or two - letter chemical symbol. each chemical symbol is used to represent the elements in the periodic table, as well as in chemical formulas for compounds. when writing the formula for a compound, you combine the symbols of the elements that make up the compound. for example, the chemical formula for water is h₂o. symbols with one letter the symbol for hydrogen is h. its atomic number is 1, so it is the first element in the periodic table. symbols with two letters the symbol for helium is he. the second letter in a symbol is always lowercase. heliums atomic number is 2, so it is the second element in the periodic table. 11 infer based on the organization and colors in the periodic table, which two elements do you think are most similar in terms of their properties: magnesium (mg), barium (ba), and gold (au)? explain.

Explanation:

Step1: Recall periodic - table trends

Elements in the same group have similar properties.

Step2: Identify groups of given elements

Magnesium (Mg) is in Group 2, barium (Ba) is in Group 2, and gold (Au) is in Group 11.

Step3: Determine similar elements

Since Mg and Ba are in the same group, they are most similar.

Answer:

Magnesium (Mg) and barium (Ba) are most similar because they are in the same group of the periodic table and elements in the same group tend to have similar chemical properties.