a lower melting point and a lower boiling point since the effective nuclear charge decreases going down a group therefore the amount of force needed to repel the electrons from the protons is weaker.
The standard temperature and pressure (STP) for chemical elements is usually defined as 0 degrees Celsius (273.15 Kelvin) and 1 atmosphere pressure. For lithium, this would be considered as STP for its properties and behaviors.
Standard temperature is 0 degrees Celsius so you are looking for the elements that have a melting point above 0 degrees Celsius. The answer is 4 elements. Elements E, G, L, and Q.
It depends on the pressure. At standard atmospheric pressure (1 atm), elements such as Mercury and Bromine are liquid at 1000 degrees Celsius.
Hydrogen, nitrogen, oxygen, fluorine, chlorine, and all the noble gases exist as a gas at standard temperature and pressure.
There are five elements in Group 17 (also known as the halogens) that are gases at room temperature at standard pressure: fluorine (F2), chlorine (Cl2), bromine (Br2), iodine (I2), and astatine (At2).
The standard temperature and pressure (STP) for chemical elements is usually defined as 0 degrees Celsius (273.15 Kelvin) and 1 atmosphere pressure. For lithium, this would be considered as STP for its properties and behaviors.
Standard temperature is 0 degrees Celsius so you are looking for the elements that have a melting point above 0 degrees Celsius. The answer is 4 elements. Elements E, G, L, and Q.
There are three elements in period 2 that are gases at room temperature and standard pressure: nitrogen (N), oxygen (O), and fluorine (F).
I'm pretty sure all elements have a freezing temperature at standard pressure.
It depends on the pressure. At standard atmospheric pressure (1 atm), elements such as Mercury and Bromine are liquid at 1000 degrees Celsius.
Standard pressure is defined as 1atm, or 760mmHg. This is sea-level atmospheric pressure here on earth.
its either123or 4
At standard temperature and pressure, there aren't 20 liquid elements. The only one would be mercury and bromine. If you change the temperature and pressure appropriately, any of the elements could conceivable be a liquid.
Elements in the table are identified by different things. What they are made of, atomic mass, and atomic number. Elements can also be identified by what state of matter they are at zero degrees Celsius and standard pressure which 1atm. The most current, standard table has 117 different elements.
Gases at SATP (standard ambient temperature and pressure) include elements such as oxygen (O2), nitrogen (N2), hydrogen (H2), and chlorine (Cl2). These elements have low boiling points and exist as gases at room temperature and pressure.
Hydrogen, nitrogen, oxygen, fluorine, chlorine, and all the noble gases exist as a gas at standard temperature and pressure.
There are five elements in Group 17 (also known as the halogens) that are gases at room temperature at standard pressure: fluorine (F2), chlorine (Cl2), bromine (Br2), iodine (I2), and astatine (At2).