1st Online Quiz General Science Sbis

The symbol for lithium is Li.

The symbol for oxygen is O.

Silicon is a chemical element with the symbol Si. The symbol for silicon is Si, which is why the correct answer is Si.

Neon is a chemical element with the symbol Ne and atomic number 10. It is a noble gas and is found in small amounts in the Earth's atmosphere. The symbol "Ne" is widely recognized and accepted as the chemical symbol for neon. Therefore, the statement "The symbol of neon is Ne" is true.

The symbol of the element sodium is Na.

Copper is commonly used in electrical wiring because it is an excellent conductor of electricity. It has low resistance, allowing for efficient flow of electrical current. Copper is also durable, malleable, and corrosion-resistant, making it a reliable choice for wiring installations. Additionally, copper has good thermal conductivity, which helps in dissipating heat generated during electrical operations. Overall, copper's electrical and physical properties make it the preferred element for electrical wiring in residential, commercial, and industrial applications.

The symbol for gold is Au.

The given statement is false. Cu is not the symbol of chromium. The correct symbol for chromium is Cr.

The symbol for mercury is Hg. This statement is true. Hg is the chemical symbol for mercury, derived from its Latin name "hydrargyrum."

Helium has an atomic number of 2. The atomic number represents the number of protons in the nucleus of an atom. Since helium has an atomic number of 2, it means that it has 2 protons. This is a unique characteristic of helium and distinguishes it from other elements. Hydrogen, magnesium, and boron have different atomic numbers and therefore cannot be the correct answer.

The symbol of nitrogen is not Ni, but rather N. The symbol Ni actually represents the element nickel.

The atomic number of helium is actually 2, not 1. The atomic number represents the number of protons in the nucleus of an atom. Since helium has 2 protons, its atomic number is 2.

The symbol Ag represents the element silver on the periodic table. Silver is a lustrous, white metal that is known for its high electrical and thermal conductivity. It is commonly used in jewelry, coins, and electrical components. Therefore, the correct meaning of the symbol Ag is silver.

The symbol of sulfur is S.

The correct answer is aluminum.

Chromium is a chemical element with the symbol Cr and atomic number 24. It is a hard, lustrous, steel-gray metal that is commonly used in the production of stainless steel and other alloys. Chromium is known for its corrosion resistance and high melting point, making it suitable for various industrial applications. It is also used in the manufacturing of pigments, dyes, and tanning agents.

The complete name of Sir Riz is Lorizty Lo Calingacion.

The statement "This is made of chromium" is false. It implies that the object in question is composed of chromium, which is not supported by any evidence or context provided.

Tungsten is the element inside the vial.

Beryllium is represented by this element.