Golongan Viiia (Gas Mulia)

The correct answer is "elektron pada kulit terluarnya 8, kecuali He". This is because the statement refers to the octet rule, which states that atoms tend to gain, lose, or share electrons in order to have a full outer shell of 8 electrons. Noble gases are known for having a full outer shell, except for helium which has only 2 electrons in its outer shell. Therefore, the statement correctly identifies the characteristic of noble gases having 8 electrons in their outer shell, except for helium.

The correct answer is Radon because it has the largest atomic radius among the noble gases. Atomic radius generally increases down a group in the periodic table, and since Radon is located at the bottom of the noble gases group, it has the largest atomic radius compared to Neon, Argon, Krypton, and Xenon.

Gas mulia merupakan unsur yang sangat stabil karena memiliki konfigurasi elektron yang stabil. Konfigurasi elektron yang stabil pada gas mulia terdiri dari delapan elektron di kulit terluar, kecuali helium yang memiliki konfigurasi stabil dengan dua elektron. Karena konfigurasi elektron yang stabil, gas mulia cenderung tidak bereaksi dengan unsur lain dan memiliki energi ionisasi yang relatif kecil. Selain itu, jari-jari atom gas mulia relatif besar, yang juga berkontribusi pada stabilitasnya.

Xenon and Krypton are noble gases that have been able to form compounds or synthesised compounds. This means that they can react with other elements to form chemical compounds, unlike other noble gases such as Helium and Neon which are generally inert and do not readily form compounds. Therefore, the correct answer is Xenon and Krypton.

The correct answer is "Molekul-molekulnya terdiri atas satu atom" because gas mulia, such as helium, neon, and argon, exist as individual atoms and do not form molecules. These atoms are stable and do not need to bond with other atoms to achieve a full outer electron shell. Therefore, they exist as monoatomic gases.

Energi ionisasi adalah energi yang diperlukan untuk menghilangkan elektron dari atom atau ion yang netral. Semakin tinggi nomor atom, semakin banyak elektron yang ada dalam atom dan semakin rapat mereka terikat. Oleh karena itu, semakin tinggi nomor atom, semakin sulit untuk menghilangkan elektron dan energi ionisasi akan meningkat. Jadi, dengan bertambahnya nomor atom, energi ionisasi akan semakin meningkat.

Helium is the correct answer because it is the most abundant noble gas in the universe. It is found in large quantities in stars, especially during the process of nuclear fusion. Helium is also present in gas giants like Jupiter and Saturn. Although other noble gases like xenon, krypton, argon, and neon are also found in the universe, helium is the most plentiful.

The correct answer is "Gaya Van der Walls makin kuat" because as we move from He to Xe, the size and number of electrons in the atoms increase, resulting in stronger Van der Waals forces between the atoms. This leads to higher boiling and melting points for the noble gases.

The explanation for the given correct answer is that all noble gases have 8 valence electrons, except for helium which has only 2. Valence electrons are the electrons in the outermost energy level of an atom and they determine the chemical properties of an element. Therefore, the statement that all valence electrons of noble gases add up to 8 is incorrect.

The given question states that Ar to Xe can react with other elements under certain conditions. The term "eleketronegatif" refers to the ability of an atom to attract electrons towards itself in a chemical bond. Since the question mentions that these elements can react with other elements, it implies that they have a tendency to gain or accept electrons, making them electronegative. Therefore, "eleketronegatif" is the correct answer.

Argon is the correct answer because it is the most abundant noble gas in the Earth's atmosphere. It makes up about 0.93% of the atmosphere, making it the third most abundant gas after nitrogen and oxygen. Helium, neon, krypton, and xenon are also noble gases, but they are present in much smaller quantities in the atmosphere.

The correct answer is "destilasi bertingkat udara cair". This is because the process of obtaining noble gases can be done through fractional distillation of liquid air. Fractional distillation involves separating the components of a liquid mixture based on their different boiling points. In this case, the different components of air, including noble gases, can be separated by cooling and condensing the air to liquid form, and then gradually heating it to vaporize and collect the different gases.

The correct answer is "Oksidator kuat". This means that the substance is a strong oxidizing agent. This suggests that the substance has a high tendency to gain electrons and undergo reduction reactions, making it a powerful oxidizing agent.

Argon digunakan dalam lampu reklame karena memiliki sifat yang tidak reaktif dan stabil. Ketika listrik dialirkan melalui tabung lampu yang berisi argon, argon akan menghasilkan cahaya yang berwarna biru-violet. Cahaya ini memberikan efek yang menarik dan menonjol, sehingga cocok digunakan dalam lampu reklame untuk menarik perhatian orang.

Xenon is more reactive than argon because xenon can form compounds with other elements, while argon is considered inert and does not readily react with other substances. This is due to the difference in their electron configurations. Xenon has a larger atomic size and more electron shells compared to argon, which allows for more opportunities for chemical reactions to occur.

The correct answer is "Gaya tarik Van der Walls relatif lemah". This is because the boiling and melting points of He to Xe are below room temperature. This suggests that the intermolecular forces, specifically the Van der Waals forces, between the molecules of these elements are relatively weak. As a result, it requires less energy to break these forces and convert the substance from a solid or liquid to a gas at lower temperatures.

The correct answer suggests that noble gases have a high ionization energy because they find it very difficult to release their outermost electrons. This is because noble gases have a full valence shell, making them highly stable and less likely to undergo chemical reactions. As a result, they require a significant amount of energy to remove an electron from their outermost shell, leading to a high ionization energy.

The correct answer states that from period 1 to period 5, xenon has the longest atomic radius. This is because as you move down a group or period in the periodic table, the atomic radius generally increases. Therefore, since xenon is located in period 5, its atomic radius is expected to be longer than elements in the previous periods.

The explanation for the correct answer is that noble gas molecules are nonpolar because they consist of neutral atoms. In a nonpolar molecule, the distribution of electrons is symmetrical, resulting in no separation of charge and no dipole moment. Noble gases already have a full outer electron shell, making them stable and unlikely to form polar covalent bonds. Therefore, the molecules formed by noble gases are nonpolar.

Helium tergolong gas mulia karena sifatnya mirip dengan Neon.