Answer:
S-glass
Explanation:
The "S" in the S-glass signify strength and it a high tensile strength fiberglass that offer improved mechanical properties and lower density than the regular traditional glass (E-glass), thus it is an important component for building and aircraft structures.
Answer:
A). A few of the positive particles aimed at a gold foil seemed to bounce back off of the thin metallic foil.
Explanation:
Scientists decided to change the model of the atom when they discovered new evidence that showed 'few of the positive particles aimed at a gold foil seemed to bounce back off of the thin metallic foil.' On this ground, <u>Rutherford concluded that atom is mostly made up of empty space and thus, he proposed a nucleus model of atom in which the atom comprises of the tiny and positively charged nucleus is surrounded by electrons with a negative charge</u>. Thus, <u>option A</u> is the correct answer.
Answer:
A positive ion is formed by the removal of electron(s) from an atom or group of atoms.
A negative ion is formed by the addition of electron(s) to an atom or group of atoms.
Explanation:
A positive ion, also known as cation is formed by the removal of electron(s) from an atom or group of atoms until there are fewer electrons than protons. It positive ion because it contains more proton than electron.
A negative ion, also known as anion is formed when an atom or group of atoms gains electron(s) until there are more electrons than protons. It negative ion because it contains more electron than proton.
19 I think it's 19 I hope this helps
Breathing, since we take in the same chemicals