The atomic number of an element is determined by the number of:

Question

The atomic number of an element is determined by the number of:

A. Protons

B. Electrons

C. Neutrons

D. Nucleons

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What is the chemical formula for sodium bicarbonate?

A. NaHCO3

B. NaOH

C. Na2CO3

D. Na2SO4

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Which element is essential for the process of respiration?

A. Carbon

B. Oxygen

C. Hydrogen

D. Nitrogen

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Which of the following is a noble gas?

A. Neon

B. Sodium

C. Oxygen

D. Chlorine

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What is the chemical formula for sodium hydroxide?

A. NaOH

B. HCl

C. Na2CO3

D. H2SO4

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Which of the following is a nonmetal?

A. Sodium

B. Chlorine

C. Iron

D. Calcium

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Which gas makes up the majority of Earth's atmosphere?

A. Oxygen

B. Carbon dioxide

C. Nitrogen

D. Hydrogen

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What is the chemical formula for glucose?

A. C2H6O

B. CH4

C. C6H12O6

D. C8H18

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Which of the following is a transition metal?

A. Sodium

B. Iron

C. Calcium

D. Potassium

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Which of the following is a halogen?

A. Sodium

B. Fluorine

C. Potassium

D. Calcium

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Which element is essential for all organic compounds?

A. Carbon

B. Oxygen

C. Hydrogen

D. Nitrogen

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What is the chemical formula for methane?

A. CH4

B. CO2

C. H2O

D. NH3

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What is the chemical formula for carbon monoxide?

A. CO2

B. CH4

C. CO

D. C2O

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What is the chemical symbol for silver?

A. Ag

B. Au

C. Si

D. Sr

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What is the chemical formula for ozone?

A. O2

B. H2O

C. CO2

D. O3

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Which gas is produced during photosynthesis?

A. Oxygen

B. Carbon dioxide

C. Nitrogen

D. Hydrogen

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The atomic number of an element is determined by the number of:

A. Protons

B. Electrons

C. Neutrons

D. Nucleons

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Which gas is produced by burning fossil fuels and contributes to air pollution?

A. Oxygen

B. Nitrogen

C. Carbon dioxide

D. Sulfur dioxide

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What is the chemical formula for hydrochloric acid?

A. H2SO4

B. HCl

C. HNO3

D. H3PO4

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What is the chemical formula for water?

A. H2O

B. CO2

C. CH4

D. O2

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Which element is essential for human bone health?

A. Calcium

B. Iron

C. Sodium

D. Potassium

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Which of the following is a greenhouse gas produced by human activities?

A. Oxygen

B. Carbon dioxide

C. Nitrogen

D. Argon

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Which gas is used in the process of photosynthesis?

A. Carbon dioxide

B. Oxygen

C. Nitrogen

D. Hydrogen

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Which of the following is a metalloid?

A. Boron

B. Oxygen

C. Nitrogen

D. Sulfur

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What is the chemical formula for sulfur dioxide?

A. SO2

B. H2SO4

C. SO3

D. H2S

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What is the chemical formula for sulfur hexafluoride?

A. SF6

B. SF5

C. S2F6

D. S2F5

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How many electrons are in the outermost energy level (valence shell) of a neutral oxygen atom?

A. 2

B. 6

C. 8

D. 4

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How many hydrogen atoms are in one molecule of methane (CH4)?

A. 1

B. 2

C. 3

D. 4

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Which element is the primary component of organic molecules?

A. Nitrogen

B. Oxygen

C. Carbon

D. Hydrogen

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What is the chemical formula for aspirin?

A. C6H12O6

B. CH4

C. C9H8O4

D. C12H22O11

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What is the chemical formula for potassium nitrate?

A. KNO3

B. KN2O4

C. K2NO3

D. K3NO2

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Accepted Answer

A. Protons

The atomic number of an element is determined by the number of:

Correct Answer :

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Related Questions

What is the chemical formula for sodium bicarbonate?

Which element is essential for the process of respiration?

Which of the following is a noble gas?

What is the chemical formula for sodium hydroxide?

Which of the following is a nonmetal?

Which gas makes up the majority of Earth's atmosphere?

What is the chemical formula for glucose?

Which of the following is a transition metal?

Which of the following is a halogen?

Which element is essential for all organic compounds?

What is the chemical formula for methane?

What is the chemical formula for carbon monoxide?

What is the chemical symbol for silver?

What is the chemical formula for ozone?

Which gas is produced during photosynthesis?

The atomic number of an element is determined by the number of:

Which gas is produced by burning fossil fuels and contributes to air pollution?

What is the chemical formula for hydrochloric acid?

What is the chemical formula for water?

Which element is essential for human bone health?

Which of the following is a greenhouse gas produced by human activities?

Which gas is used in the process of photosynthesis?

Which of the following is a metalloid?

What is the chemical formula for sulfur dioxide?

What is the chemical formula for sulfur hexafluoride?

How many electrons are in the outermost energy level (valence shell) of a neutral oxygen atom?

How many hydrogen atoms are in one molecule of methane (CH4)?

Which element is the primary component of organic molecules?

What is the chemical formula for aspirin?

What is the chemical formula for potassium nitrate?

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