How is the mass number calculated for an element

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Reference no: EM13745668

1. The combination of the atoms of two or more elements is known as a/an

A. base.

B. acid.

C. elixir.

D. compound.

2. Astronomy can best be described as a/an

A. daily horoscope.

B. Air Force pilot on a naval carrier.

C. study of objects pertaining to the interior part of the Earth.

D. study of objects beyond the Earth's atmosphere.

3. What element has 81 protons in the nuclei of its atoms?

A. Uranium

B. Platinum

C. Thallium

D. Lead

4. Earth is divided into 24

A. equators.

B. coordinates.

C. time zones.

D. degrees.

5. Cartography is the science of

A. the prime meridian.

B. the solar system.

C. cartoon graphics.

D. mapmaking.

6. What are the three particles of an atom?

A. Neutron, electron, and ion

B. Proton, neutron, and electron

C. Proton, ion, and valencium

D. Electron, proton, and isotope

7. What type of map is best suited for maritime navigation?

A. Conic projection

B. Mercator projection

C. Geologic

D. Topographic

8. What measurement best describes the results of a scientific experiment regarding volume?

A. 5 quarts

B. 125 gallons

C. 2 pints

D. 1425 mL

9. The study of the weather is known as

A. microbiology.

B. hydrology.

C. geology.

D. meteorology.

10. What measurement best describes the results of a scientific experiment regarding distance?

A. 500 kilograms

B. 523 inches

C. 51 kilometers

D. 57 miles

11. Which of the following is not a characteristic that geologists use to identify minerals?

A. Fracture

B. Color

C. Streak

D. Softness

12. What statement best describes an independent variable?

A. The factor that's not changed by the experimenter and is impacted by the dependent variable

B. The factor that does not change, but impacts the constant in an experiment

C. The factor that's changed by the experimenter and impacts the constant in an experiment

D. The factor that's changed by the experimenter and impacts the dependent variable

13. Climatology is a subspecialty of

A. environmental science.

B. meteorology.

C. marine biology.

D. oceanography.

14. Please choose the answer that describes the scientific notation for 3,134,000,000.

A. 31.34 × 109

B. 3.143 × 1045

C. 3.143 × 109

D. 3.134 × 109

15. The five major areas of the study of Earth science are

A. biology, physical science, chemistry, physics, and optometry.

B. chemistry, geology, oceanography, optometry, and philosophy.

C. astronomy, meteorology, geology, oceanography, and optometry.

D. astronomy, meteorology, geology, oceanography, and environmental science.

16. Which statement best describes the formation of diamonds?

A. Diamonds form in kimberlites under very low pressure.

B. Diamonds form in talc under very high pressure.

C. Diamonds form in talc under very low pressure.

D. Diamonds form in kimberlites under very high pressure.

17. Which statement best describes an igneous intrusion?

A. Magma is injected into surrounding rock forming an igneous intrusion.

B. Igneous intrusions form when ice crystals splash into lava.

C. Magma is exported to an open area and forms iron.

D. Magma explodes to the surface and forms a smooth outer layer of rock.

18. A heterogeneous mixture is a

A. mixture that always contains water.

B. component added to sand that makes it inseparable. C. mixture in which its components retain their identity. D. mixture in which its components can't be separated.

19. A person's temperature is 40° C. What would it be in Kelvin?

A. -313 K

B. -313° C

C. 313° C

D. 313 K

20. How is the mass number calculated for an element?

A. The product of neutrons and protons

B. The difference between the mass and the protons

C. There is no calculation.

D. The sum of protons and neutrons.

Reference no: EM13745668

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