31 which list of element symbols represents a metal, a nonmetal, and a noble gas? a ga, sn, ge b ga, s, br c…

31 which list of element symbols represents a metal, a nonmetal, and a noble gas? a ga, sn, ge b ga, s, br c zn, sn, ar d zn, o, ne 32 which element has an atomic number of 31? a copper b gallium c xenon d phosphorus 33 in which diagram would the force required to move the object up the ramp be the greatest? a rough surface 50 kg 1 meter c rough surface 50 kg 1 meter wheels b smooth surface 50 kg 1 meter d smooth surface 50 kg 1 meter wheels

31 which list of element symbols represents a metal, a nonmetal, and a noble gas? a ga, sn, ge b ga, s, br c zn, sn, ar d zn, o, ne 32 which element has an atomic number of 31? a copper b gallium c xenon d phosphorus 33 in which diagram would the force required to move the object up the ramp be the greatest? a rough surface 50 kg 1 meter c rough surface 50 kg 1 meter wheels b smooth surface 50 kg 1 meter d smooth surface 50 kg 1 meter wheels

Answer

Explanation:

Step1: Identify metal, non - metal and noble gas in 31

Ga (gallium) is a metal, S (sulfur) is a non - metal, Br (bromine) is a non - metal. Zn (zinc) is a metal, Sn (tin) is a metal, Ar (argon) is a noble gas. Zn is a metal, O (oxygen) is a non - metal, Ne (neon) is a noble gas. Option D has a metal (Zn), a non - metal (O) and a noble gas (Ne).

Step2: Identify element with atomic number 31 in 32

From the periodic table, gallium (Ga) has an atomic number of 31. Copper (Cu) has atomic number 29, xenon (Xe) has atomic number 54, phosphorus (P) has atomic number 15.

Step3: Analyze force in 33

Friction increases the force required to move an object up a ramp. Rough surfaces have more friction than smooth surfaces. Objects with wheels have less friction than those without wheels. Option A has a rough surface and no wheels, so the force required to move the object up the ramp will be the greatest.

Answer:

  1. D. Zn, O, Ne
  2. B. gallium
  3. A