What does the plus mean next to an element

Consider the group 1A elements sodium (period 3), potassium (period 4), and rubidium (period 5). What would you predict about the ionization energies of these elements?

What is an analogy that describes the process of electron carriers?

According to the law of conservation of momentum, which statement is true about a system that has no external forces acting on it? O A. An increase in momentum before a collision must equal an increase in momentum after the collision. O B.

Given that bacteria change the composition of their cellular membranes, which of the following would you predict to happen to the membrane composition of a bacterial culture that was shifted from growth at 37 °C to 10 °C?

Does iron melt at 1728 degrees Celsius

What is the primary role of the United States Bureau of Counterterrorism? о to plan counterterrorist attacks to create active counterterrorism groups to encourage domestic counterterrorism activities to advance counterterrorism efforts in other

a phase change from B to A will represent a loss of energy. what is the term to describe this transition if B is the liquid phase

Why would the Linnaeus system not stay the same? Explain in your own words.

What element has these characteristics MgX2, Very low density, Highly reactive, Diatomic

What is the development of lymphocytes compared to other formed elements?