Question

You're selecting pictures for a class presentation on your new favorite element, neon, Ne. You're told this is a correct model of an atom of this element. Select all that are true. (2 points) Responses There are 10 electrons located in the nucleus. There are 10 electrons located in the nucleus. There are 10 neutrons and 10 protons in the nucleus. There are 10 neutrons and 10 protons in the nucleus. The total mass of this at is 30 amu. The total mass of this at is 30 amu. The yellow dots represent electrons in the electron cloud. The yellow dots represent electrons in the electron cloud.

Answer 1

To evaluate the statements regarding the atom of neon (Ne), let's break down the key facts about this element:

1. Atomic Number: Neon has an atomic number of 10, which means it has 10 protons.
2. Electrons: In a neutral atom, the number of electrons equals the number of protons; thus, there are also 10 electrons in neon.
3. Neutrons: The most common isotope of neon has 10 neutrons (neon-20).
4. Atomic Mass: The atomic mass of neon is approximately 20 amu, which accounts for the combined mass of protons and neutrons. The statement about the total mass of 30 amu is incorrect.
5. Structure: Electrons are found in the electron cloud surrounding the nucleus, not in the nucleus itself.

Based on this information, let's evaluate the given statements:

• "There are 10 electrons located in the nucleus." → False. Electrons are not located in the nucleus; they are in the electron cloud.

• "There are 10 neutrons and 10 protons in the nucleus." → True. The most common isotope of neon has 10 neutrons and 10 protons.

• "The total mass of this atom is 30 amu." → False. The total mass of the most stable isotope of neon is approximately 20 amu.

• "The yellow dots represent electrons in the electron cloud." → True. Electrons are represented as being in the electron cloud.

True Statements:

• There are 10 neutrons and 10 protons in the nucleus.
• The yellow dots represent electrons in the electron cloud.