An atom has atomic number 11 and mass number 23. How many electrons does the atom have?

Can you give me a Example Sentence of is Heteroph?

Scientific conclusions are based only on observable evidence true or false

What happens to an atom of sulfur (S) if it loses an electron? A. It becomes inert. B. It becomes a cation. C. It becomes an anion. D. It becomes a molecule

Identify the phase in which the water molecules are closest together. identify the phase in which the water molecules are closest together. liquid gas solid dry ice

Which of the following pairs of elements is/are likely to form an ionic bond? Choose one or more: A. Na and F B. Ca and Cl C. H and H D. Cl and Br E. K and I F. N and C

In a laboratory, Carlos places one plate with grape jelly and another plate with cooked brown rice inside an ant farm. The next day, he finds that both plates are filled with ants.

Which statement is true at STP? (The atomic mass of Zn is 65.39 u.)

A sample of gas has a volume of 2.4 L and a pressure of 1.2 atm. What would the pressure of the same gas sample be if the volume is reduced to 1.8L at a constant temperature?

The elements most likely to form more than type of ion are the ... A. Transition metals B. alkali metals C. halogens D. alkaline earth metals

Mole-Mass Conversions How many moles in 28. o grams of Oxygen? What is the mass of 5.0 moles of Iron? Find the number of moles of argon in 452 g of argon. Find the grams in 16.5 mol of Hydrogen.