To determine which of these elements are gases at 1000°C, we need to look at their boiling points.

1. Helium: Helium has a boiling point of -268.93°C. Therefore, it would be a gas at 1000°C.

2. Mercury: Mercury has a boiling point of 356.73°C. Therefore, it would also be a gas at 1000°C.

3. Sodium: Sodium has a boiling point of 883°C. Therefore, it would be a gas at 1000°C.

4. Silicon: Silicon has a boiling point of 2355°C. Therefore, it would still be a solid at 1000°C.

5. Rhenium: Rhenium has a boiling point of 5596°C. Therefore, it would still be a solid at 1000°C.

So, Helium, Mercury, and Sodium would be gases at 1000°C.

Question

To determine which of these elements are gases at 1000°C, we need to look at their boiling points.

1. Helium: Helium has a boiling point of -268.93°C. Therefore, it would be a gas at 1000°C.

2. Mercury: Mercury has a boiling point of 356.73°C. Therefore, it would also be a gas at 1000°C.

3. Sodium: Sodium has a boiling point of 883°C. Therefore, it would be a gas at 1000°C.

4. Silicon: Silicon has a boiling point of 2355°C. Therefore, it would still be a solid at 1000°C.

5. Rhenium: Rhenium has a boiling point of 5596°C. Therefore, it would still be a solid at 1000°C.

So, Helium, Mercury, and Sodium would be gases at 1000°C.

Knowee AI · Accepted Answer

To determine which of these elements are gases at 1000°C, we need to look at their boiling points.

1. Helium: Helium has a boiling point of -268.93°C. Therefore, it would be a gas at 1000°C.

2. Mercury: Mercury has a boiling point of 356.73°C. Therefore, it would also be a gas at 1000°C.

3. Sodium: Sodium has a boiling point of 883°C. Therefore, it would be a gas at 1000°C.

4. Silicon: Silicon has a boiling point of 2355°C. Therefore, it would still be a solid at 1000°C.

5. Rhenium: Rhenium has a boiling point of 5596°C. Therefore, it would still be a solid at 1000°C.

So, Helium, Mercury, and Sodium would be gases at 1000°C.

Which of these elements are gases at 1000°C?HeliumMercurySodiumSiliconRhenium