Question

complete the table below, using the diagram of an atom shown at right.
properties of subatomic particles

name	symbol	charge (in multiples of e)	approximate mass (amu)	location on diagram
⬜	⬜	0	1.0	a
⬜	⬜	−1	0.0005	b

Explanation:

Step1: Recall electron properties

Electrons have a charge of -1 (in multiples of e), mass ≈ 0.0005 amu, and are located in electron clouds (around the nucleus, so in regions like B in the diagram).

Step2: Recall neutron properties

Neutrons have charge 0, mass ≈ 1.0 amu, and are located in the nucleus (region A). Symbol: n.

Step3: Recall proton properties

Protons have charge +1, but wait, the third row has charge -1? Wait, no, the third row: wait, the table rows: first row is electron. Second row: charge 0, mass 1.0, location A (nucleus) → neutron (name: neutron, symbol: n). Third row: charge -1, mass 0.0005, location B → electron? Wait, no, first row is electron. Wait, maybe the table is:

First row: electron: charge -1, mass 0.0005, location (electron cloud, like B).

Second row: neutron: name neutron, symbol n, charge 0, mass 1.0, location A (nucleus).

Third row: proton? No, proton has charge +1. Wait, maybe the third row is electron? No, first row is electron. Wait, let's correct:

• Electron: symbol \( e^- \), charge -1, mass ~0.0005 amu, location: electron cloud (B).

• Neutron: name neutron, symbol \( n \), charge 0, mass ~1.0 amu, location: nucleus (A).

• Proton: name proton, symbol \( p^+ \), charge +1, mass ~1.0 amu, location: nucleus (A). But in the table, third row has charge -1, mass 0.0005, location B → that's electron. Wait, maybe the table has:

Row 1: electron: charge -1, mass 0.0005, location B.

Row 2: neutron: name neutron, symbol n, charge 0, mass 1.0, location A.

Row 3: Wait, no, maybe the first row's charge is -1, mass 0.0005, location B. Second row: neutron (charge 0, mass 1.0, location A). Third row: Wait, the third row has charge -1? No, maybe a typo, but based on subatomic particles:

Electron: charge -1, mass ~0.0005 amu, location: electron shells (B).

Neutron: charge 0, mass ~1.0 amu, location: nucleus (A), symbol n.

Proton: charge +1, mass ~1.0 amu, location: nucleus (A), symbol p.

So filling the table:

First row (electron):

• charge: -1

• approximate mass: 0.0005

• location: B (electron cloud)

Second row:

• name: neutron

• symbol: n

• charge: 0 (given)

• approximate mass: 1.0 (given)

• location: A (nucleus, given)

Third row: Wait, the third row has charge -1, mass 0.0005, location B → that's electron? But first row is electron. Maybe the table is:

Row 1: electron: charge -1, mass 0.0005, location B.

Row 2: neutron: name neutron, symbol n, charge 0, mass 1.0, location A.

Row 3: Wait, no, maybe the third row is proton? No, proton has +1. Wait, maybe the user's table has:

First row: electron, symbol (maybe \( e^- \)), charge -1, mass 0.0005, location B.

Second row: neutron, symbol n, charge 0, mass 1.0, location A.

Third row: Wait, the third row's charge is -1, mass 0.0005, location B → electron? But first row is electron. Maybe a mistake, but proceeding with standard subatomic particles:

Answer:

name	symbol	charge (in multiples of e)	approximate mass (amu)	location on diagram
neutron	\( n \)	0	1.0	A
electron	\( e^- \)	-1	0.0005	B	(Wait, no, third row: maybe proton? No, proton is +1. Wait, maybe the third row is electron, but first row is also electron. Maybe the table has three particles: electron, neutron, proton. Let's correct:

Proton: name proton, symbol \( p^+ \), charge +1, mass 1.0, location A.

But the third row has charge -1, so it's electron. So:

First row: electron, charge -1, mass 0.0005, location B.

Second row: neutron, charge 0, mass 1.0, location A.

Third row: electron? No, maybe the table is:

Row 1: electron: charge -1, mass 0.0005, location B.

Row 2: neutron: name neutron, symbol n, charge 0, mass 1.0, location A.

Row 3: proton: name proton, symbol \( p^+ \), charge +1, mass 1.0, location A. But the third row has charge -1, so that's not. Maybe the user's table has a typo, but based on the given mass and charge:

For the first row (electron):

• charge: -1

• approximate mass: 0.0005

• location: B (electron cloud)

Second row:

• name: neutron

• symbol: n

• charge: 0 (given)

• approximate mass: 1.0 (given)

• location: A (nucleus, given)

Third row:

• name: electron (since charge -1, mass 0.0005, location B)

• symbol: \( e^- \)

• charge: -1 (given)

• approximate mass: 0.0005 (given)

• location: B (given)

So filling the blanks:

First row (electron):

• charge: \(-1\)

• approximate mass: \(0.0005\)

• location: \(B\)

Second row:

• name: \(\text{neutron}\)

• symbol: \(n\)

Third row:

• name: \(\text{electron}\)

• symbol: \(e^-\)