What is the atomic number of boron ?

1 Answer

Answer :

Boron atomic number 5 .

Related questions

Description : What is the relative atomic number of boron ?

Last Answer : The relative atomic number of boron is 11 .

Description : What is the atomic number of boron ?

Last Answer : The atomic number of boron is 5 .

Description : Atomic number of which of the following elements is greater than that of Fluorine? (1) Sodium (2) Beryllium (3) Nitrogen (4) Boron

Last Answer : (1) Sodium Explanation: Sodium has higher atomic number (11) than Fluorine (9) The atomic number of Beryllium and Nitrogen are 4 and 7 respectively.

Last Answer : Atomic Numbers 5.

Description : What is the sub-atomic particles in the nucleolus of a boron atom?

Last Answer : Need answer

Description : The element with the least atomic size from Carbon, Nitrogen, Boron and Beryllium is

Last Answer : Nitrogen.

Description : What is the mass number of a boron atom with 4 neutrons?

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Description : Does anyone here know what the lewis dot structure is for boron sulfide?

Last Answer : Try looking up “Lewis Dot Structure” on a search engine and see if that “rings a bell”.

Description : What are the deficiency symptoms of Boron in plants? -Biology

Last Answer : answer:

Description : What is the sign of boron ?

Last Answer : B boron signal

Description : What is the color of boron ?

Last Answer : Boron color is dark brown.

Description : What is the borosity of boron ?

Last Answer : Boron valence 3 .

Description : What is the boiling point of boron ?

Last Answer : Boron's boiling point is 3660 degrees Celsius.

Description : What is the melting point of boron ?

Last Answer : Boron has a melting point of 2300 degrees Celsius.

Description : What language did Boron come from ?

Last Answer : Boron comes from Arabic language.

Description : What is the symbol of Boron ?

Last Answer : Boron's symbol B

Description : The hybridization states of boron and nitrogen in borazole respectively

Last Answer : The hybridization states of boron and nitrogen in borazole respectively A. sp, sp B. sp, `sp^(2)` C. `sp^(2),sp^(2)` D. `sp^(2),sp^(3)`

Description : Boron can be obtained by various methods but not by :

Last Answer : Boron can be obtained by various methods but not by : A. Reduction of `B_(2)O_(3)` with Mg B. ... with `H_(2)` D. electrolysis of fused `BCl_(3)`

Description : Does boron form covalent compound or ionic?

Last Answer : Does boron form covalent compound or ionic?

Description : What are 5 common uses for boron?

Last Answer : Need answer

Description : How does boron bond with iodine?

Last Answer : The bond is polar covalent.

Description : Is boron a cation or a anion?

Last Answer : Boron is an element and is neither an anion or cation. Ifionized it would tend to from B3+ and would be thus a cation.

Description : Why boron compounds behave as Lewis acids?

Last Answer : What is the answer ?

Description : Is boron polar or non polar?

Last Answer : It's non polar covalent

Description : Is boron polar or non polar?

Last Answer : It's non polar covalent

Description : What bond does boron and oxygen form?

Last Answer : form a triple bond prone to cyclotrimerization to boroxines.

Description : Which mineral is a source of phosphorus and boron in soils?

Last Answer : Ans. Apetite

Description : The permissible and normal limit of EC, RSC, SAR (meq 1 –1 ) and Boron content (ppm)

Last Answer : Ans.2–4, < 2.5, < 10 and 10,000 ha

Description : What are hydrides of boron called ?

Last Answer : Boranes

Description : Both rubies and sapphires contain (a) silicon dioxide (b) lead tetroxide (c) aluminium oxide (d) boron nitride

Last Answer : Ans:(c)

Description : Which of the following can be purified by the electrolytic method? (a) Sodium (Na) (b) Copper (Cu) (c) Boron (B) (d) Chlorine (C12)

Last Answer : Ans:129

Description : The water core disease of apples is caused by (a) boron deficiency (b) bacterial infection (c) fungal infection (d) high temperatures

Last Answer : Ans:(d)

Description : The elements known as primary nutrients for plants (1) Nitrogen, Phosphorus and Potassium (2) Nitrogen, Oxygen and Silicon (3) Potassium, Boron and Nitrogen (4) Nitrogen, Phosphorus and Iron

Last Answer : (1) Nitrogen, Phosphorus and Potassium Explanation: Nitrogen (N), Phosphorus (P) and Potassium (K) are considered as the three essential or primary nutrients for plants. Together they make up ... need small quantities of iron, manganese, zinc, copper, boron and molybdenum, known as trace elements

Description : Which among the following elements increases the absorption of water and calcium in plants? (1) Manganese (2) Boron (3) Copper (4) Molybdenum

Last Answer : (2) Boron Explanation: Boron increases the absorption of water and calcium in the plants. It helps in the metabolic activities in plants. Boron is necessary in order for sugar to move through protoplasmic membranes.

Description : Which element behaves chemically both as metal and nonmetal? (1) Argon (2) Boron (3) Xenon (4) Carbon

Last Answer : (2) Boron Explanation: Some elements behave chemically both as metals and nonmetals, and are called metalloids. Their examples include Boron, Silicon, Germanium and Antimony. Elements which are neither metals nor nonmetals are called Noble Gases.

Description : Which of the following can be used to absorb neutrons to control the chain reaction during nuclear fission? (1) Boron (2) Heavy water (3) Uranium (4) Plutonium

Last Answer : (1) Boron Explanation: Boron shielding is used as a control for nuclear reactors, taking advantage of its high cross-section for neutron capture. Elemental boron is rare and ... aluminium. Crystalline boron is chemicallyinert and resistant to attack by boiling hydrofluoric or hydrochloric acid.

Description : wo elements which are used to absorb neutrons to control the chain reaction during nuclear fission are - (1) Boron and Cadmium (2) Boron and Plutonium (3) Cadmium and Uranium (4) Uranium and Boron

Last Answer : (1) Boron and Cadmium Explanation: Since the continued chain reaction of a nuclear fission reactor depends upon at least one neutron from each fission being absorbed by another fissionable nucleus, the ... and then the control rods are slowly lifted until a chain reaction can just be sustained.

Description : Which of the following is not used as a moderator in nuclear reactor? (A) Molten sodium (B) Light water (C) Beryllium (D) Boron hydride

Last Answer : (A) Molten sodium

Description : The word boron was originated from?

Last Answer : Borax

Description : A control rod (A) Should have small absorption cross-section (B) Is generally made of boron, hafnium or cadmium (C) Should have large absorption cross-section (D) Both (B) and (C)

Last Answer : (D) Both (B) and (C)

Description : Which of the following is not a good moderating material? (A) Concrete (B) Boron (C) 18/8 stainless steel (D) All (A), (B) and (C)

Last Answer : (D) All (A), (B) and (C)

Description : Safety rods provided in nuclear reactors to guard against accidents, in case of earthquake are made of (A) High carbon steel (B) Molybdenum (C) Zircaloy (D) Boron or cadmium

Last Answer : (D) Boron or cadmium

Description : The main constituent of carborundum is __________ carbide. (A) Calcium (B) Silicon (C) Boron (D) Aluminium

Last Answer : (B) Silicon

Description : __________ is a donor impurity for semi-conductors. (A) Boron (B) Antimony (C) Gallium (D) None of these

Last Answer : (B) Antimony

Description : Give reason why boron and aluminum tend of form covalent compounds.

Last Answer : Ans. Sum of the three ionization enthalpies of both the elements are very high. Thus they have no tendency to lose electrons to form ionic compound. Instead they form covalent compounds.

Description : why does boron form stable electron deficient compounds?

Last Answer : Ansboron has three electrons in its valance shell that boron show three electrons with other element and form an electron deficient compound

Description : why is boron used in nuclear reactions?

Last Answer : Ansbecause boron can absorb neutrons.

Description : What are the real world applications of boron family?

Last Answer : Ans. Boron compounds are being evaluated for treating arthritis. The alloys of aluminum are used in the construction of aircraft and rockets. Gallium is used to dope ... selenium rectifiers, gamma radiation detection equipment, and infrared radiation detection and transmission equipment.

Description : Name non-metal of Boron Family .What is the reason for its non-metallic behavior?

Last Answer : Ans Boron. Because of its small size ,high ionization enthalpy and comparatively high electronegativity.

Description : What are two isotopic forms of boron?

Last Answer : Ans: B(10,5) and B(11,5).