2. Atoms & Elements

How many elements are currently represented on the periodic table of elements?

Which neutral element has 89 electrons?

Who is usually recognized for creating the modern periodic table?

Which of the following is the symbol for the element located in group 4A (14) and period 2 of the periodic table?

Which of the following is the atomic number of lead (Pb)?

In the periodic table, the element manganese is represented by a box containing the symbol 'Mn'. If an arrow is pointing to 'Mn', what does this symbol indicate?

Which of the following types of information about elements can be obtained directly from the periodic table?

On many periodic tables, which color is commonly used to represent the element symbols of gases at room temperature?

Which element has the chemical symbol W?

Which of the following is the correct chemical symbol for sulfur?

Which of the following is typically found on the periodic table for each element?

Which of the following is the atomic number of bromine (Br)?

Which of the following is the number of protons in a gallium (Ga) atom?

How many elements are currently recognized in the modern periodic table?

Which of the following best describes how the chemical symbol of an element is determined?