Identify the Atom Worksheet

Have you ever wondered how to identify different atoms and understand their properties? Look no further as we bring you the perfect solution – the Identify the Atom Worksheet. Designed to cater to students and science enthusiasts alike, this worksheet provides an engaging platform to strengthen your knowledge on the subject of atoms.

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What is the atomic number of an atom?

The atomic number of an atom is the number of protons found in the nucleus of that atom. It determines the identity of the element, as each element has a unique atomic number.

What is the mass number of an atom?

The mass number of an atom is the total number of protons and neutrons present in its nucleus. It is used to identify different isotopes of an element, as the number of protons (which determine the element's identity) remains constant while the number of neutrons can vary, resulting in isotopes with different mass numbers.

How many protons does an atom of hydrogen have?

An atom of hydrogen has one proton.

How many neutrons does an atom of carbon-14 have?

An atom of carbon-14 has 8 neutrons.

Which subatomic particle determines the chemical properties of an atom?

The electron is the subatomic particle that determines the chemical properties of an atom. Electrons are responsible for forming chemical bonds between atoms, which ultimately determine the reactivity and behavior of elements in chemical reactions.

What is the electron configuration of an atom?

The electron configuration of an atom refers to the distribution of electrons within its orbitals. It is written using the notation that indicates the energy level (shell), sublevel (s, p, d, f), and the number of electrons in each sublevel. For example, the electron configuration of carbon is 1s2 2s2 2p2, which shows that carbon has 6 electrons distributed across its electron orbitals in the first and second energy levels.

How many valence electrons does an atom of sodium have?

An atom of sodium has one valence electron.

What is the overall charge of an atom that has gained two electrons?

An atom that has gained two electrons will have an overall charge of -2, as each electron carries a negative charge of -1.

What is an isotope?

An isotope is a variant of a chemical element that has the same number of protons in its nucleus but different numbers of neutrons, resulting in different atomic weights. This variation in atomic weights can affect certain properties of the element, such as stability and radioactivity.

How does an atom become an ion?

An atom becomes an ion by gaining or losing electrons. When an atom gains electrons, it becomes a negatively charged ion, called an anion. Conversely, when an atom loses electrons, it becomes a positively charged ion, called a cation. This process occurs when atoms seek to achieve a stable electron configuration, such as a full outer electron shell, by either gaining or losing electrons to attain a balanced number of protons and electrons.