Physicist Ernest Rutherford established the nuclear theory of the atom with his gold-foil experiment. When he shot a beam of alpha particles at a sheet of gold foil, a few of the particles were deflected. He concluded that a tiny, dense nucleus was causing the deflections.

4 0

4 years ago

Read 2 more answers

Solid NaCl is produced by the

soldi70 [24.7K]

Answer:

2Na (s) + Cl2 (g) -->2NaCl (s) + heat

Explanation:

7 0

3 years ago

Draw the Lewis structure (including resonance structures) for the acetate ion (CH3COO−). For each resonance structure, use squar

kaheart [24]

Answer:

Lewis structure is shown in the image below.

Explanation:

Acetate ion (CH₃COO⁻)

Valence electrons of carbon = 4

Valence electrons of oxygen = 6

Valence electrons of hydrogen = 1

Charge = 1 (Negative which means that the electrons are being added)

The total number of the valence electrons = 2(4) + 2(6) + 3(1) + 1 = 24

The Lewis structure is drawn in such a way that the octet of each atom and duet for the hydrogen in the molecule is complete. So,

The Lewis structure is shown in the image below.

7 0

3 years ago