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Gas at room temperature and colorless...
nonmetals
cesium
Calcium
it has mass and a positive charge
flourine
7
metals
11
Which elements are malleable, shiny and good conductors?
nonmetals
cesium
Calcium
it has mass and a positive charge
flourine
7
metals
11
Based on the Periodic table, which element has similar physical properties as Magnesium?
nonmetals
cesium
Calcium
it has mass and a positive charge
flourine
7
metals
11
An atom has a mass number of 19 and is composed of 9 protons, how many valence?
nonmetals
cesium
Calcium
it has mass and a positive charge
flourine
7
metals
11
An atom has a mass number of 19 and is composed of 9 protons, what is the name of the element?
nonmetals
cesium
Calcium
it has mass and a positive charge
flourine
7
metals
11
An atom has an atomic number of 11 and 12 neutrons. What is the number of electrons?
nonmetals
cesium
Calcium
it has mass and a positive charge
flourine
7
metals
11
Which best describe the subatomic particle that is found in the nucleus of an atom?
nonmetals
cesium
Calcium
it has mass and a positive charge
flourine
7
metals
11
Which element have 1 valence electron?
nonmetals
cesium
Calcium
it has mass and a positive charge
flourine
7
metals
11
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