QUICK QUESTION: On the Bohr model, how come potassium has 19 electrons in its valence shell if potassium has a K+? Isn’t it suppose to have 18 electrons? I thought that if an ion has a positive charge, the atom has lost electrons. Pls help me I will give brainliest

Brainlest answer can you find the area and circumference of a circle given the radius or diameter? if its yes or no explain why

What value of x is in the solution set of 4x - 12 s 16 + 8x? -10 -9 -8 -7

Acompany that manufactures and sells guitars made changes in their product range. from the start they had 20 models. then they reduced the number of models to 15. as a result, the company enjoyed a 10% increase in turnover. - how much did the stock level change? in (%)