sodium is an element with 11 protons within the nucleus and 11 electrons. Another example of an element is carbon, which has six protons within the nucleus and six electrons. In both cases, these elements have a neutral charge. An atom becomes charged when the number...
sodium is an element with 11 protons within the nucleus and 11 electrons. Another example of an element is carbon, which has six protons within the nucleus and six electrons. In both cases, these elements have a neutral charge. An atom becomes charged when the number...
1.(Elements & Compounds) any of the 118 known substances (of which 93 occur naturally) that consist of atoms with the same number of protons in their nuclei. Comparecompound11 2.one of the fundamental or irreducible components making up a whole ...
Although all atoms of an element have the same number of protons in their nuclei, they may not all have the same number of neutrons. Atoms of an element with the same mass number make up an isotope of the element. All known elements have isotopes; some have more than others. Hydrogen,...
reaction that produces the huge amounts of energy radiated by the Sun and most other stars is the fusion of the lightest element, hydrogen, its nucleus having a single proton, into helium, the second lightest and second most abundant, with a nucleus consisting of two protons and two neutrons...
We present a simple method for the quantitative analysis of light elements, H, C, N and O, in thin, self-supporting low Z films with MeV protons in one run. Proton-proton scattering is utilized for the detection of hydrogen and backscattered protons are simultaneously analyzed for detecting ...
sodium just has K L and M shells (2 8 1) while calcium has K L M and N (2 8 8 2). 2008-01-18 16:30:26 补充： The nuclear charge of Ca must be greater than Na due to 20 protons attract 2粒 outermost shell electrons paring Na with 11protons ...
Are you 11protons? 'Cause you are sodium fine. What did the chemist say to motivate his team? We ARGON to BARIUM. What don't you understand aboutcopper? It makes perfect CENTS! A good way to remember gold is "Au gimme that gold". ...
aThe element X has three isotopes: X-221, X-220, and X-218, with masses 220.9, 220.0, and 218.1 amu. The relative abundances of these three isotopes are 74.22%, 12.78%, and 13.00%, respectively. Calculate the atomic mass of element X. 元素x有三同位素: X-221, X-220和X-218,与大量...
ISOTOPE ATOMS OF THE SAME ELEMENT WITH THE SAME NUMBER OF PROTONS/ELECTRONS BUT A DIFFERENT # OF NEUTRONS CARBON ISOTOPE HOW MANY PROTONS, ELECTRONS AND NEUTRONS HOW MANY PROTONS, ELECTRONS NEUTRONS COMPARE THE TWO CARBONS 1. HOW DOES THE MASS COMPARE ...