I thought it was pure substance. But i recently took a Science Test of these subject(i'm also in 8th grade) and it was the same question...EXACTLY! I put down Pure substance as well but appearantly the answer was "All of the Above" which included A.Pure Substance B.Compound C.Element ... so as long as you can prove it was only pure substance( This was for extra credit to get points back on the test for my teacher) You got the points. In my opinion a Pure Substance is the substance in which there is only one type of particle. I hoped this helped :)
a pure substance, you must be doing a worksheet on it too!
A pure substance that consists of only one type of atom is called an element. All of the known chemical elements are organized in the Periodic Table.
from what i have heard the answer to this quetion is pure substance
All the elements on the Period Table are pure substances and contains only one kind of particle.
a pure substance
2 to the 6 power = -6
pure
Element
All elements in the Periodic Table contain only one type of atom.
A radiation particle consisting of two protons and two neutrons is called an Alpha Particle. Alpha Particles have the same structure as a Helium nucleus. There are three forms of radiation, Alpha (Helium nucleus), Beta (a lone electron) and Gamma (an Electromagnetic wave).
a substance
!!A pure substance that cannot be separated or broken down into simpler substances by ordinary chemical means!!
A pure substance has only one kind of particle. Sulfur is an example of a pure substance.
a pure substance
H+ a hydrogen ion, is actually just a proton... I'm not sure if that's what you were asking.
element
A substance that is composed of only one kind of matter is called an element. The smallest particle of an element is called an atom.
a pure substance
An element.
A substance that contains only one type of element is referred to as 'intrinsic.' An example being 'Intrinsic Silicon,' used in the production of semi-conductors.
it is made of one PARTICLE THROUGHOUT AND HAS NOTHING ADDED TO IT
A substance that contains only one type of element is referred to as 'intrinsic.' An example being 'Intrinsic Silicon,' used in the production of semi-conductors.
A substance that contains only one type of element is referred to as 'intrinsic.' An example being 'Intrinsic Silicon,' used in the production of semi-conductors.
The answer is likely supposed to be "an element", but ANY chemical substance contains only one type of particle, whether it is an element (atoms) or a compound (molecules). It is only combinations of elements or compounds (alloys, solutions, mixtures) that contains multiple types of particles.