The atomic number of an element:

Question 2 options:

Tells you the mass of the atom

Tells you the number of energy levels there are around the atom

Tells you the identity of the atom

Tells you how many valence electrons the atom has
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Tells you the identity of the atom

Which of the following sequences of elements would all have four valence electrons?

Question 3 options:

B, Si, As, Te

C, Si, Ge, Sn

O, S, Se, Te

Ga, Ge, As, Se

C, Si, Ge, Sn

The elements on the Periodic Table that we use today are arranged by _______________

Question 4 options:

Atomic Mass

Atomic Number

Neutrons

Color

Atomic Number

The atomic number of an element tells you the identity of the atom.

The atomic number of an element tells you the identity of the atom. To find the atomic number of an element, you can look it up on the periodic table. The atomic number corresponds to the number of protons in the nucleus of an atom. Each element has a unique atomic number, which is what differentiates one element from another. For example, the atomic number of hydrogen is 1, while the atomic number of carbon is 6. Therefore, the correct answer is: "Tells you the identity of the atom."