Question

please help will award medal

Answer 1

1. What is the first element on the periodic table?
2. What is the centre of an atom called?
3. True or false? Acids have a pH level below 7.
4. What is the main gas found in the air we breathe?
5. True or false? An electron carries a positive charge.
6. Famous New Zealand scientist Ernest Rutherford was awarded a Nobel Prize in which field?
7. What is the chemical symbol for gold?
8. K is the chemical symbol for which element?
9. What orbits the nucleus of an atom?
10. At room temperature, what is the only metal that is in liquid form?
11. True or false? A neutron has no net electric charge.
12. A nuclear reaction where the nucleus of an atom splits into smaller parts is known as nuclear fission or nuclear fusion?
13. What is H20 more commonly known as?
14. What is the third most common gas found in the air we breathe?
15. What is the name given to substances that are initially involved in a chemical reaction?
16. True or false? Bases have a pH level below 7.
17. Is sodium hydroxide (NaOH) an acid or base?
18. Atoms of the same chemical element that have different atomic mass are known as?
19. True or false? A proton carries a positive charge.
20. What is the fourth most abundant element in the universe in terms of mass?

Answer 2

@CaseyCarns @chosenmatt @iGreen @Secret-Ninja

Answer 3

O.O Woah there buddy, only one question at a time.

Answer 4

okay well do the first one then

Answer 5

I'll try though...

Answer 6

thanks you

Answer 7

stop @Secret-Ninja

Answer 8

I found the answers

Answer 9

1. Hydrogen
2. A nucleus
3. True
4. Nitrogen (around 78%)
5. False
6. Chemistry
7. Au
8. Potassium
9. Electrons
10. Mercury
11. True
12. Nuclear fission
13. Water
14. Argon (around 1%)
15. Reactants
16. False
17. Base
18. Isotopes
19. True
20. Carbon

Answer 10

:D

Answer 11

1. The first chemical element is Hydrogen.
2. Nucleus.
3. True.
4. Oxygen.
5. False.
6. A pioneer of nuclear physics and the first to split the atom, Rutherford was awarded the 1908 Nobel Prize in Chemistry for his theory of atomic structure.
7. Au
8. The chemical symbol K comes from kalium, the Mediaeval Latin for potash, which may have derived from the arabic word qali, meaning alkali. Potassium is a soft, silvery-white metal, member of the alkali group of the periodic chart.
9. Electrons.
10. Mercury.
11. True.
12. Nuclear Fission.
13. Water.
14. Nitrogen.
15. Reactants.
16. False.
17. Base.
18. Isotopes.
19. True.
20. Carbon.

Answer 12

Oh wow. I didn't even see you post that. >.< I worked so hard omg

Answer 13

I think you got 14 wrong... idk

Answer 14

well thx