Chemistry

posted by .

Which describes a quark?

A)one of the most basic types of particles
B)a variety of an element that has different number of neutrons
C)a particle in the nucleus that has one of the most significant amounts of mass
D)the smallest atom identified by scientists

****I think it is A, but am not completely sure, please help w/explanation!!***

  • Chemistry -

    A is correct although C comes close but I would discount C because quarks, as individual particles, are not present in the nucleus. Neutrons and protons are made of quarks; neutrons and protons are in the nucleus.
    There are six kinds of quarks (at least the last time I counted) each with a corresponding anti-quark; up quarks and down quarks along with charm, strange, top (or truth) and bottom (or beauty) and these names may have changed by now. The up quarks have +2/3 charge and the down quarks have -1/3 charge. A proton is made of 2 ups and 1 down (2/3 + 2/3 - 1/3 = 3/3 = +1 charge) while a neutron is made of 1 up and 2 down (+2/3 - 1/3 - 1/3 = 0 charge). There is more but I think that answers the question without getting too whacky.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Science

    Why certain elements bond well while others do not?
  2. Chemistry please check

    1. A Geiger counter measures radiation indirectly by measuring flashes of light electrons released by ionization speaker static curies answer: electrons released by ionization 2. Reactor control rods are made of a substance that absorbs …
  3. Science

    1. Which statement about subatomic particles is NOT true?
  4. Physics

    In a location in outer space far from all other objects, a nucleus whose mass is 3.57232e-25 kg and which is initially at rest undergoes spontaneous "alpha" decay. The original nucleus disappears, and two new particles appear: a He-4 …
  5. chemistry

    1.what is meant by atomic number of an element?
  6. Chemistry

    Will someone please help me? I had a question and i answered it, but i coudn't draw a picture for it. Can some help me draw a picture for it or tell me how to draw it step by step. Thank you. The nucleus is made up of protons and neutrons.
  7. Science--Help.

    Which of the following is NOT one of the eight most common elements in Earth’s continental crust?
  8. chemistry

    Which of the following statements is true about the nucleus?
  9. Check my answers, Physical science

    my answer has the **** 1. What is the smallest part of all matter called?
  10. CHECK answers science

    my answer has the **** 1. What is the smallest part of all matter called?

More Similar Questions