An atomic model shows 19 protons, 20 neutrons, and 19 electrons. What is the mass number of the atom?(1 point)

39
58
19
20
I need help

I completed it 100% (also girl in red notice me!!😭)

1. 39
2. 9 E, 9 P, 10 N
3. 1 blue sphere 3 white spheres
4. Bonds between atoms
5. They have the same number of electron shells
6. Atomic orbital
7. Protons repel the particles, while neutrons do not.
8. Alkali metals
9. Arsenic
10. Number of orbitals
11. Silcon and germanium
12. The tendency of an atom to attract electrons in a bond
13. It forms covalent bonds because it wants four more electrons to share in order to fill its outer shell
14. 3-
15. It has a half-full outer shell of electrons, allowing it tl form a wide variety of bonds.
16.methyl

1. 39

2.one blue sphere and three white spheres
3. Bonds between atoms
4. They have the same number of electron shells
5. They all have the same number of electrons in the outer shell
6. Vinegar
7. 3
8. Baking a cake
9. A new substance is formed as the battery is used
10. The H2O and O2 produced have the same mass as the original H2O2
11.20
12. It has the same number of atoms on both sides for each specific type of atom
13. Eight
Hope these where the correct answers for y’all I noticed some of y’all were sayin it was different and the questions didn’t match up so hope this helps🙂

Yall don't read it says it doesn't count as a grade but a I think boy in blue has it down

the first few(1-5) were right for me but then the rest weren't even options

This is chaos I am gonna look for answers somewhere else LOL

1. 39

2. one blue sphere and three white spheres
3. bonds between atoms
4. They have the same number of electron shells.
5. They all have the same number of electrons in the outer shell.
6. baking a cake
7. A new substance is formed as the battery is used.
8. The H2O and O2 produced have the same mass as the original H2O2.
9. 20
10. It has the same number of atoms on both sides for each specific type of atom.
11. eight

Me. To


Does any one have the answers to that test????
Help me pleas!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Yk you can check your answer as you go right

I have 11

People it’s a practice you can check your answers by pressing the check answer button 😂