I HAVE A BIOLOGY QUESTIOn?

Question

1.so the numbers of protons in an element equal the numbers of electrons?
2.protons + neutrons = atomic weight
3. atomic number= to the number of protons

4.how many electrons does CL have?
5.whats the atomic # and weight of CL?

Answer 1

1) Depends, if its ionic or not. in its elemental form, its the same.
2) Yes
3) YEs
4) 17 in its elemental form
5) #= 17 and mass 35.453amu

Answer 2

1. Yes, unless two of the atoms have a polar bond.
2. Yes, the number of protons + the number of neutron will give you atomic weight
3. Yes
4. 17
5. atomic # = 17 and the mass (weight) is 35* (this is an averaged number from the most common found isotopes, 35 is a good answer for anything under a 200 level college class, a more exact answer is 35.45)

Answer 3

1different for ions
2differs for isotopes
3yes
4. cl electrons are whatever the atomic number is because it equals number of protons
5.atomic number is number of protons. weight is protons plus neutrons.

Answer 4

Um....

That's not biology.

1. Usually, if it's a stable atom (see ions)
2. Usually, unless it's been eating quantonuts(TM)
3. Usually, unless it's bad at math (see public school atoms)

4. A light cruiser (CL) contains roughly 10,000 tons or about 9,000,000,000g of steel. Assuming standard HY-100 steel, this comprises:
7,100,000,000g or 130,000,000 moles of iron, with 780X10^29 atoms containing 20000X10^29 electrons;
3,200,000g or 270,000 moles of carbon with 1.6 X 10^29 atoms containing 96X10^29 electrons;
450,000,000g or 8,200,000 moles of manganese with 49X10^29 atoms containing 1200X10^29 electrons;
90,000,000g or 3,200,000 moles of silicon with 19X10^29 atoms containing 270X10^29 electrons;
140,000,000g or 4,400,000 moles of sulfur with 26X10^29 atoms containing 420X10^29 electrons;
270,000,000g or 4,600,000 moles of nickel with 28X10^29 atoms containing 780X10^29 electrons;
180,000,000g or 2,800,000 moles of copper with 17X10^29 atoms containing 490X10^29 electrons;
9,000,000g or 97,000 moles of niobium with 0.6X10^29 atoms containing 24X10^29 electrons;
9,000,000g or 330,000 moles of aluminum with 2.0X10^29 atoms containing 26X10^29 electrons;
360,000,000g or 3,800,000 moles of molybdenum with 23X10^29 atoms containing 950X10^29 electrons; and
360,000,000g or 6,900,000 moles of chromium with 42X10^29 atoms containing 1000X10^29 electrons.
The total is about 25,000X10^29 or 2,500,000,000,000,000,000,000,000,000,000,000
(Note: Due to rounding for significant digits these numbers do not add up exactly. But what's a few quadrillion between friends?)

Unless by 'CL' you meant 'Cl' for chlorine, in which case the answer is 17. Unless it's an ion. (see #1)

5. 17 and 35.45, respectively.

Answer 5

I study D&T not science!!! =X JKJK i don't know