Answer:
3. An oxygen atom with 8 electrons, 8 protons, and 9 neutrons .
Explanation:
if an atom contains equal numbers of protons and electrons, the atom is described as being neutral.
The cells get into your body by the lungs this answer is correct cause i had the same question and my teacher mark it correct
B,Si,Ge,As,Sb,Te, and At are all the metalloids on the periodic table of elements.
Answer:
Explanation:
There are seven periods in the periodic table, with each one beginning at the far left. A new period begins when a new principal energy level begins filling with electrons. Period 1 has only two elements (hydrogen and helium), while periods 2 and 3 have 8 elements. Periods 4 and 5 have 18 elements.
The atomic mass is greater than the atomic number.
